# The data in the following table represent time-study observations on a new operation with three work elements. On the basis of these observations, find the standard time for the process. Assume an 8% allowance factor. Element-1,2,3. Performance Rating-105%,90%,115%. Observation (seconds

77,249 questions

The data in the following table represent time-study observations on a new operation with three work elements. On the basis of these observations, find the standard time for the process. Assume an 8% allowance factor. Element-1,2,3. Performance

asked by D.Martin on April 26, 2007
2. ## Physics

For a physics lab involving watchnig a gldier move down an air track with uniform acceleration, and recording the results in a table then graphing the results,do I include that "Observations were held and results were recorded in a table. Two graphs, one

asked by Emily on March 6, 2011

A time study of operations yielded the following observed times for one element of the job; the analyst gave a performance rating of 1.13. Using an allowance of 20%, determine the appropriate standard time for this operation. Observations Time, x 1 1.12 2

asked by Anonymous on May 1, 2012
4. ## Math

The Dubuque Cement Company packs 80-pound bags of concrete mix. Time-study data for the filling activity are shown in the following table. Because of the high physical demands of the job, the company's policy is a 23% allowance for workers. a) Compute the

asked by Theresa on January 9, 2013
5. ## Accounting

The Dubuque Cement Company packs 80-pound bags of concrete mix. Time-study data for the filling activity are shown in the following table. Because of the high physical demands of the job, the company's policy is a 23% allowance for workers. a) Compute the

asked by Johniece on January 9, 2013
6. ## Math

The Dubuque Cement Company packs 80-pound bags of concrete mix. Time-study data for the filling activity are shown in the following table. Because of the high physical demands of the job, the company's policy is a 23% allowance for workers. a) Compute the

asked by Theresa on January 2, 2013
7. ## Science

PLEASE DO NOT THINK I AM CHEATING AND ASKING FOR ANSWERS. DO NOT LECTURE ME, I AM SIMPLY ASKING WHAT IN THE HELL THIS MEANS: Collecting and Analyzing Data There are two types of observations: qualitative and quantitative. Qualitative observations use words

asked by D on August 28, 2017
8. ## statistics

A sample of the number of study per week of college students is collected. Some of the sample results of the survey are given in the following table Study Hr 4, 10, 20,24, 34, 36, 42 Z score -2.5,-1.75,-0.5,0, 1.25,1.5,2.25 P. Rank 10, 25, 35, 40, 50, 75

asked by Ronnie on December 21, 2010
9. ## Statistics

Which of the following is an accurate description of Simpson's paradox? When groups of data are aggregated, an association can get stronger because of a confounding variable. That confounding variable is usually the number of observations in different

asked by Anonymous on February 24, 2013
10. ## statistics

An animal trainer obtained the following sample data (Table A) in a study of reaction times of dogs (in seconds) to a specific stimulus. He then selected another group of dogs that were much older than the first group and measure their reaction times to

asked by Anonymous on October 16, 2009
11. ## Statistics

I need help with this problem. I think I have some of the answers right but I'm not sure. There is a data set consisting of 33 whole-number observations. Its five number summary is (16, 20, 22, 30, 46) 1. How many observations are stricty less than 22? I

asked by Samantha on September 22, 2009
12. ## statistics

okay heres the question and the answer I have, but Im not sure its right because the values seem way too high to interpet what it means..: Data: 63.4,65.0,64.4,63.3,54.8,64.5,60.8,49.1,51.0 "Assume that these observations on SRS from the late Cretaceous

asked by Stumped again on December 5, 2011
13. ## math

The Survey of Earned Doctorates regularly assesses the numbers and types of doctorates awarded at U.S. universities.It also provides data on the length of time, in years, it takes to complete a doctorate. Below is a modified list of this completion-time

asked by ios7 on September 23, 2013
14. ## math

Use the table to answer the following questions time (hours)------ Distance (miles) 2. 90 3 135 5 225 6 270 a. Find the constant of proportionality b. Use the constant of proportionality to write a unit rate for the data in the table c. Write an equation

asked by Ms.I need help on April 11, 2019
15. ## Algebra

Does the data in the table represent a direct variation or an inverse variation? x 1 3 4 7 y 5 15 20 35 Write an equation to model the data in the table

asked by Kat on May 2, 2016
16. ## physics

How am I supposed to answer this question on the lab write-up? I have the date, but I don't know the formula or process to use. Thanks. Organizing Data: Using your estimate of the threshold frequency from your first data table and your measured value of ft

17. ## Math

Find the constant of proportionality and the unit rate for the data in the table then write an equation to represent the relationship between time tea and distance D.

18. ## Statistics

Which of the following is an accurate description of Simpson's paradox? When groups of data are aggregated, an association can get stronger because of a confounding variable. That confounding variable is usually the number of observations in different

asked by Anonymous on February 18, 2013
19. ## CHEMISTRY

a concentration-time study of the gas phase reaction a 2A3 -> 3A2 produced the data in the table below. time [A3] (M) [A2] (M) 0 4.00 *10^-4 0 10 2.00 *10^-4 3.00 *10^-4 20 1.00 *10^-4 4.50 *10^-4 10 5.00 *10^-5 ? A) What is the concentration of A2 in the

asked by chantel on September 4, 2014
20. ## statistics

what is the percentile for the data value. In a data set with a rane of 60.07 to 115 and 300 observations, there are 207 observations with values less thsn 85.4. Find the percentile for 85.4.

asked by Rose on March 7, 2012
21. ## Physics - Mini Lab

The reason I didn't do this was because I was gone the day they did this at school. And the teacher said I couldn't do it at school. So I need help and my teacher is a jerk, so I have no idea what to do. Please help me. I really need a good grade in this

asked by Marisa on March 8, 2015
22. ## statistics

A job in an insurance office involves telephone conversations with policyholders. The office manager estimates that about half of the employee’s time is spent on the telephone. How many observations are needed in a work sampling study to estimate that

asked by rodrigo on September 29, 2011
23. ## CHEM

a concentration-time study of the gas phase reaction a 2A3 -> 3A2 produced the data in the table below. Time (s) [A3] (M) [A2] (M) 0 4.00 × 10–4 0 10 2.00 × 10–4 3.00 × 10–4 20 1.00 × 10–4 4.50 × 10–4 30 5.00 × 10–5 A) What is the

asked by CHANTEL on September 4, 2014
24. ## Math

find the constant of proporionality and the unit rate for the data in the table. Then write an equation to represent the relationship between time t and distance d. Time(hours) Distance(miles 2 90 3 135 5 225 6 270 I need help asap i'm in connexus its a

asked by Lily on April 5, 2018
25. ## Operations management

At a major supermarket, checkout time is monitored to improve service quality. For six days, samples each with 20 observations have been obtained, and the following table summarizes the data. Determine if the checkout process is in control or not. You must

asked by Ashley on February 13, 2012
26. ## pre-algrbra

The following table represents the total cost, in dollars (y) to join a gym for x number of months. The cost includes a one-time joining fee of 10\$. Does the data in the table represent a proportional relationship or a non-proportional relationship? how do

asked by HI123 on March 28, 2018
27. ## Math

A table shows the longest rivers in the world in miles.2341,2590,2718,2543,4160,2635,2734,3362,2744,2485,3395,2350,4000,3964,2600 thousands long.It has two questions.1. Choose an appropriate scale and interval size for a frequency table that will represent

asked by Kurstyn on January 10, 2012
28. ## math

You are riding your bike at a constant speed of 30 feet per second. A friend uses a stopwatch to time you as you are riding along a city block that is 240 feet long. 1. Make a table to represent the situation where the independent variable is time and the

asked by Rabie on November 29, 2015
29. ## Statistics

Which of the following is an accurate description of Simpson's paradox? When groups of data are aggregated, an association can get stronger because of a confounding variable. That confounding variable is usually the number of observations in different

asked by Jon on February 21, 2013
30. ## Stats- Two-tailed test

A researcher is conducting a matched-pairs study. She gathers data on each pair in the study resulting in the table below. Assume that the data are normally distributed in the population. Pair Group1 Group2 1 10 12 2 8 9 3 11 11 4 8 10 5 9 12 a) At 10%

asked by Thara on June 12, 2011
31. ## Inferential Statictics

Welsh, Davis, Burke, and Williams (2002) conducted a study to evaluate the effectiveness of a carbohydrate-electrolyte drink on sports performance and endurance. Experienced athletes were given either a carbohydrate-electrolyte drink or a placebo while

asked by Summer on February 27, 2012
32. ## statistics

A student is interested in whether students who study with music playing devote as much attention to their studies as do students who study under quiet conditions (he believes that studying under quiet conditions leads to better attention). he randomly

asked by kelly on March 18, 2012
33. ## Math

Sales of a video game released in the year 2000 took off at first, but then steadily slowed as time moved on. The table below shows the number of games sold, in thousands, from the years 2000–2010. Year 2000 2001 2002 2003 2004 2005 Number Sold

asked by Anonymous on April 5, 2018
34. ## Pre calculus

Sales of a video game released in the year 2000 took off at first, but then steadily slowed as time moved on. The table below shows the number of games sold, in thousands, from the years 2000–2010. Year 2000 2001 2002 2003 2004 2005 Number Sold

asked by Anonymous on April 5, 2018
35. ## Math

Sales of a video game released in the year 2000 took off at first, but then steadily slowed as time moved on. The table below shows the number of games sold, in thousands, from the years 2000–2010. Year 2000 2001 2002 2003 2004 2005 Number Sold

asked by Rachel on April 5, 2018
36. ## Math; Algebra

The table shows the outputs, y, for different inputs, x: Input (x) 1 3 5 7 Output (y) 8 6 5 4 Part A: Do the data in this table represent a function? Justify your answer. (3 points) Part B: Compare the data in the table with the relation f(x) = 4x + 8.

asked by Nevaeh on October 6, 2018
37. ## math

The table shows the outputs y for different inputs x: Input (x) 3 7 11 15 Output (y) 4 6 8 10 Part A: Do the data in this table represent a function? Justify your answer. (3 points) Part B: Compare the data in the table with the relation f(x) = 5x – 21.

asked by brittany on December 3, 2015
38. ## Math; Algebra

The table shows the outputs, y, for different inputs, x: Input (x) 13 5 7 Output (y) 8 6 5 4 Part A: Do the data in this table represent a function? Justify your answer. (3 points) Part B: Compare the data in the table with the relation f(x) = 4x + 8.

asked by Nevaeh on October 6, 2018
39. ## Statistics

4) The table below shows the study times and test scores for a number of students. Study Time (minutes) (x) 9 16 21 26 33 Test Score (y) 59 61 64 65 73 a)What line best relates study time to the test score? b)Calculate r and r^2. c)Determine whether r is

asked by Lucy on November 22, 2011
40. ## Statistics

4) The table below shows the study times and test scores for a number of students. Study Time (minutes) (x) 9 16 21 26 33 Test Score (y) 59 61 64 65 73 a)What line best relates study time to the test score? b)Calculate r and r^2. c)Determine whether r is

asked by Lucy on November 22, 2011
41. ## Maths

Hi! I'm working on a math assignment... My teacher wants me to find rainfall data and then work out the volume of water that would fall on a roof. I've already worked out the roof area but the roof is made up of multiple squares. The teacher would like me

asked by Sasha on March 31, 2011
42. ## Stat

Mean of 10 observations is 100. One of the observations is dropped from the data. The mean of the remaining observations is 9. What is the value of the dropped observation?

asked by S on April 29, 2016

Scales and Intervals The table shows the longest rivers in the world 2341 2590 2718 2543 4160 2635 2734 3362 2744 2485 3395 2350 4000 3964 2600 Choose an appropriate scale and interval size for a frequency table that will represent the data. Then make a

asked by Taylor on January 20, 2010
44. ## economic

10. Suppose, unfortunately , your mathematics and economics professors have decide to give tests 2 day from now and you can spend only a total of 12 hours studying for exams .After some thought, you conclude that dividend your study time equally between

asked by thiti on February 9, 2014
45. ## economic

Suppose, unfortunately , your mathematics and economics professors have decide to give tests 2 day from now and you can spend only a total of 12 hours studying for exams .After some thought, you conclude that dividend your study time equally between each

asked by thiti on February 9, 2014
46. ## statistics

In order to study whether IQ level is related to birth order, data were collected from a sample of 540 students on their birth order (Oldest/In Between/Youngest) and their score on an IQ test. The data collected in this study would be best displayed using:

asked by Lauren on September 26, 2011
47. ## Math

1.Mia charges \$2.25 per hour when she babysits, plus \$5.00 for transportation expenses.Which function rule represents the amount y mia charges to babysit for x hours? A)Y = 2.25x + 5.00*** B)X = 5.00y + 2.25 C)Y = 5.00x + 2.25 D)Y = 7.25x 2.(So this one is

asked by Reeses on May 20, 2017

I need to create a scatter plot using data for Old Faithful that includes waiting time between eruptions and the duration of the eruption. It's a data frame with 10 observations on 2 variables. eruptions numeric: eruption time in mins waiting numeric:

asked by Alexis on March 2, 2016
49. ## probability and statistics

welsh, davis, burke, and williams (2002) conducted a study to evaluate the effectiveness of a carbohydrate-electrolyte drink on sports performance and endurance. experienced athletes were given either s carbohydrate-electrolyte drink or a placebo while

asked by kiera on January 6, 2012
50. ## World History

Which operation led to the Allied forces breaking through the Gothic Line? A) Operation Overlord B) Operation Torch C) Operation Olive D) Operation Barbarossa

asked by Anonymous on December 14, 2018
51. ## history

Which operation led to the Allied forces breaking through the Gothic Line? Operation Olive Operation Torch Operation Overlord Operation Barbarossa A?

asked by bri on March 4, 2019
52. ## math

1.Thompson Security has been hired to determine the number of visitors at Argon Mall on a typical 10-hour day. They counted the number of people who entered the mall during three 1-hour spans on Wednesday, August 10. They entered the data into a table as

asked by melanie on February 21, 2009
53. ## algebra

does the data in the table represent a linear function? if so, wirte a rule for the function. (below is what the table looks like) x | -2| -1| 0 | 1| 2| y | -7| 1| 8 | 17| 25| answer choices yes; y = 8x +9 yes; y = 8x + 8 no yes; y = 1/8x + 8

asked by Emma on June 5, 2014
54. ## math

i need to choose an appropriate scale and interval size for a frequency table that will represent the data and then make a frequency table. How do i do this?

asked by Eric on January 19, 2011
55. ## Algebra

Mitch has 3 tests to study for on Thursday night. He needs to spend twice as much time on Science as English. He also has to study Math and he can learn that in 1/2 the time it takes to study English. He has four hours to study. What is the maximum amount

asked by LP on January 6, 2013
56. ## Science Project Help

Hello, My science project is asking me to "compose a scientific summary of your method, observations, data, and conclusions" on determining the volume of both regular & irregular objects. They wanted me to answer the 4 questions below in my summary: 1. Why

asked by NAtasha on January 4, 2016
57. ## Algebra 2

Randy wants to collect 515 baseballs cards. Each week Randy buys 15 baseball cards. a. Create a table to represent this situation where t is the amount of time in weeks and c is the number of cards that Randy still wants to buy. b. Write an equation to

asked by Charles on June 10, 2019
58. ## math

Use the tables to answer the following questions. a. find the constant of proportionality b. use the constant of proportionality to write a unit rate for the data in the table c. write an equation to represent the relationship between time, t, and

asked by hueskai on March 13, 2019
59. ## stats

AARP reported on a study conducted to learn howlong it takes individuals to prepare their federal income tax return (AARP Bulletin, April 2008). The data contained in the file named TaxReturn are consistent with the study results. These data provide the

asked by Anonymous on October 27, 2014
60. ## math

find the constant of proportionality and unit rate for the data in the table. Then write the equation to represent the relationship between time t and distance d Time Distance 2 t 90 miles 3 hrs 135 miles 5 hrs 225 miles 6 hrs 270 miles i need to show how

asked by Natasha on April 4, 2017
61. ## Math help please ASAP

15. Do the data in the table represent a linear function? If so, write a rule for the function. x –3 –2 –1 0 1 y 1 –2 –5 –8 –11 (1 point) yes; y = –3x – 8 yes; y = 1/3x – 8 yes; y = 1/3x + 8 yes; y = 3x + 8 16. Write a quadratic rule

asked by Delilah on May 2, 2013
62. ## Math

15. Do the data in the table represent a linear function? If so, write a rule for the function. x –3 –2 –1 0 1 y 1 –2 –5 –8 –11 (1 point) yes; y = –3x – 8 yes; y = 1/3x – 8 yes; y = 1/3x + 8 yes; y = 3x + 8 16. Write a quadratic rule

asked by #FreeGucci on April 13, 2016
63. ## Math "Need Help Asap"!

15. Do the data in the table represent a linear function? If so, write a rule for the function. x –3 –2 –1 0 1 y 1 –2 –5 –8 –11 (1 point) yes; y = –3x – 8 yes; y = 1/3x – 8 yes; y = 1/3x + 8 yes; y = 3x + 8 16. Write a quadratic rule

asked by #FreeGucci on April 13, 2016
64. ## phsyic A

i experimented on constant velocity i have to set up data table but i need to solve with r(lowercase i)=d(lowercase i)- v(lowercase 2)* t(lowercase i)

asked by Vicky on September 18, 2012
65. ## Math Prob/solving

As Frank drives to work he has to pass through three lights. The probability that any light is green is 39%. Estimate the probability that exactly two lights will be green. Use the following list of digits which was taken from a table of random numbers. In

asked by Lisa on May 27, 2010
66. ## chemistry

Insert a complete data table, including appropriate significant figures and units, in the space below. Also include any observations you made over the course of Part I. Aluminum Measured Mass of Metal 41.66 g Distilled Water Measurement 25 mL Distilled

asked by kim on July 7, 2014
67. ## marketing

Before a data collection form is completed, researchers sometimes set up a mock document that shows the way data will be presented and how the results of an analysis may correlate. This document is called a A. cross-sectional study. B. statistical test. C.

asked by kim on July 22, 2018
68. ## history

What was the secret CIA operation to overthrow the Cuban Government called? Operation Seagull The Bay of Pigs operation Operation Mongoose Order 632 I think its operation mongoose?

asked by Anonymous on November 28, 2011
69. ## math

find the constant of proportionality and unit rate for the data in the table. Then write the equation to represent the relationship between time t and distance d Time Distance 2 hrs 90 miles 3 hrs 135 miles 5 hrs 225 miles 6 hrs 270 miles i need to show

asked by Natasha on April 4, 2017
70. ## math question

I am trying to study for a basic math entrance exam and can not recall how to work out the following question. Here it is: Three people who work full time are to work together on a project,but their total time on the project is to be equivalent to that of

asked by Heather on August 11, 2010
71. ## math

The data in the table are linear. Use the table to find the slope. X| 2| 4| 6| 8 Y| 1|-2|-5|-8 A. 3/2 B. -3/2 C. -2/3 D. 2/3 Please help me work this out I don't know how to do this kind of stuff. Thank you in advance.

asked by blue on April 25, 2015
72. ## math

find the constant of proportionality and unit rate for the data in the table. Then write the equation to represent the relationship between time t and distance d Time Distance 2 hrs 90 miles 3 hrs 135 miles 5 hrs 225 miles 6 hrs 270 miles I don't

asked by gwen on May 12, 2014
73. ## algebra

Simplify x + 7 / x^2 + 4x - 21 (This is a fraction) Answer choices - 1/x-3; where x does not equal 3.-7 x - 3; where x does not equal 3 1/x-7; where x does not eaul 7 x-7 Do the data in the table represent a direct varation or an inverse varition? writie

74. ## math

1.Transform the graph of f(x) = 3^x to sketch g(x) = 3^-(x+1) -2. Show table of values and each transformation clearly. 2.Write two equations to represent the same exponential function with a y-intercept of 5 and an asymptote at y = 3. Investigate whether

asked by kk on March 15, 2012
75. ## math

1.Transform the graph of f(x) = 3^x to sketch g(x) = 3^-(x+1) -2. Show table of values and each transformation clearly. 2.Write two equations to represent the same exponential function with a y-intercept of 5 and an asymptote at y = 3. Investigate whether

asked by kk on March 15, 2012
76. ## statistics

The U.S. Geological Survey compiled historical data about Old Faithful Geyser (Yellowstone National Park) from 1870 to 1987. Let x1 be a random variable that represents the time interval (in minutes) between Old Faithful eruptions for the years 1948 to

asked by Interval Estimate on April 11, 2015

Nadia collected the data in the table on the left using a CBR after a ball was dropped. (a) Enter the data into L1 and L2 using a TI-83 Plus. Graph the relation. (b) Without looking at the graph, how do you know that the relation is not linear? (c) Use

asked by Sara on March 19, 2017
78. ## intro to probability

For the sheet-metal stamping machine in a certain factory, the time between failures, X1 has a mean between the failures, of 56 hours and a variance of 16 hours. The prepair time X2, has a mean time to repair of 5 hours and a variance of 4 hours. a) If X1

asked by amelie on April 20, 2008

1.Transform the graph of f(x) = 3^x to sketch g(x) = 3^-(x+1) -2. Show table of values and each transformation clearly to get full marks. 2.Write two equations to represent the same exponential function with a y-intercept of 5 and an asymptote at y = 3.

asked by kdwk on March 13, 2012
80. ## algebra

The table shows a meteorologists predicted temperatiures for an April day in Washington D.C. Use quadratic regression to find a quadratic model for this data. Use the 24 hour clock to represent times after noon). time predicted temperature(F) 8a.m. 50.68

asked by Jay on October 25, 2012
81. ## math 208

The table lists the price P of a first-class postage stamp for selected year’s t. t 1963 1975 1987 2002 2007 p \$.05 \$.13 \$.25 \$.37 \$.41 (a) Find the slope of each line segment connecting consecutive data points in the table. Can these data be modeled

asked by lanie on February 27, 2012
82. ## Math

Come pleat the table to represent each part of the formula. The data values have been put in ascending order. ---- X, (X, - x) 2 30 ? 32 ? 33 35 49 50 50 71 73 77

asked by Ashley salisbury on March 3, 2015
83. ## stats

8.a) Consider the data below for Alaska Airlines and for American West Airlines. Construct a bar graph which breaks down the data by airline and by city, and which shows, for each airline, the percentage of on-time flights at each city. b) Consider the

asked by Nisa on April 19, 2015
84. ## history

What was the name used for the beach landings at Normandy, France, on June 6, 1944? Operation Avalanche Operation Overlord Operation Barbarossa Operation Market Garden a

asked by me on February 9, 2019

In an experiment, a petri dish with a colony of bacteria is exposed to cold temperatures and then warmed again. Find a quadratic model for the data in the table. Type your answer below. show your work.￼￼ time hours , 0 1 2 3 4 5 6 Population (1000s) 5.

asked by Ciaria on March 17, 2015
86. ## Algebra word prob

I don't have a graphing calc so I need help with this one. A batter hits a fly ball. A scout in the stands makes the following observations. There is a table with time (seconds) and height (feet) in correspondence to each other time is .75,1.5,2,3.25,4.75

asked by Taylor95 on September 10, 2013
87. ## Statistics

Suppose flights at a large metropolitan airport are on-time 68% of the time and late 32% of the time. We want to use a table of random digits to simulate flight status (on-time or late), so we'll assign 01, 02, … , 68 to represent on-time flights, and

asked by Anonymous on April 14, 2018
88. ## statistics

The director of the campus-computing center did a study to determine the patterns of student computer usage. He found that 15% of the total student computer hours occurred during the first 5 weeks of the term, 25% during the middle five weeks, and 60%

asked by karen on August 20, 2010
89. ## math

si spend2 /3 of his study for home work & remaining for revisions, if his study is 9/2hours a day, how much time does he spend revising in a week?

asked by Ahal on July 19, 2017
90. ## statistics

A particular report included the following table classifying 711 fatal bicycle accidents according to time of day the accident occurred. Time of Day Number of Accidents Midnight to 3 a.m. 38 3 a.m. to 6 a.m. 29 6 a.m. to 9 a.m. 64 9 a.m. to Noon 78 Noon to

asked by annie on June 28, 2012
91. ## essay edit

sorry to do this to you, gurublue, but i had to break it up into different pieces...this is the last one, i swear!! The scientific misconduct case of John Darsee is wrong and immoral, based on the moral theory of rule utilitarianism. I will argue why this

asked by melinda on October 13, 2007
92. ## history

Which military actions were Allied offensives during World War II? (Select all that apply) Operation Sea Lion Operation Torch Battle of Kursk Operation Barbarossa Operation Avalanche Is it all of them?

asked by michael on June 6, 2019
93. ## Statistics in Psychology

QUESTION 25: In a study you obtain the following data representing the aggressive tendencies of some football players:40 30 39 40 41 39 31 28 33(a) Researchers have found that  is 30 in the population of nonfootball players, 1X 5 5. 2 Using both tails of

asked by Tonya on February 2, 2014
94. ## statistics

2. A teacher wants to investigate whether there is a difference between male and female students in the amount of time they spend studying for statistics. The table below shows the amount of time students spend studying statistics each week. The amounts of

asked by Carl on June 15, 2011
95. ## statistics

2. A teacher wants to investigate whether there is a difference between male and female students in the amount of time they spend studying for statistics. The table below shows the amount of time students spend studying statistics each week. The amounts of

asked by Carl on June 15, 2011
96. ## science

1 Which do you think is more effective and why? - Gathering a lot of data or - Gathering a random sample of data? 2 How does this study compose to scientists who study the structure of the atom or evolution?

asked by Kaity on September 16, 2008
97. ## Math

A) Let x represent the number of messages posted each month on a social netwroking website. B) let x represent the length of time it takes to get to work. I got A) continuous B) discrete Am i correct??

asked by Aqueen on May 5, 2015
98. ## statistics

The weekly study times for all students in a school are normally distributed with μ = 18 hours and σ = 6 hours. If 36 students are randomly selected, find the probability that their mean study time is greater than 20 hours. My work:

asked by Judy on September 15, 2016
99. ## Statistics

I have a question about one of my Stats vocab questions. any help is great. thanks! Identify the type of observational study as either Cross-sectional or retrospective (just a reminder, Cross-sectional is data measured at one point in time, retrospective

asked by Gavin on January 21, 2013
100. ## Access

A database has two tables named Products and Orders. The tables are joined by a column called ProductID. You have created a query named uery1, which combines the data from the tables. If the Products table is deleted, what will happen when users run

asked by Marie on March 13, 2011