# Robbie

Popular questions and responses by Robbie-
## statistics

A researcher reports an F-ratio with df = 2, 36 from an independent-measures research study. Based on the df values, how many treatments were compared in the study and what was the total number of subjects participating in the study? a. 2 treatments and 37

*asked on November 14, 2012* -
## statistics

A researcher used an analysis of variance to compare three treatment conditions with a separate sample of n = 8 participants in each treatment. The results of the analysis are shown in the following summary. Fill in all missing values in the table. (Hint:

*asked on November 15, 2012* -
## Statistics

John drives to work each morning and the trip takes an average of μ = 38 minutes. The distribution of driving times is approximately normal with a standard deviation of σ = 5 minutes. For a randomly selected morning, what is the probability that John’s

*asked on October 14, 2012* -
## math

Given a dilation with the origin O (0, 0), by observation determine the scale factor "K." DO, K = (5, 0) (10, 0) The dilation an expansion. true or false

*asked on July 21, 2011* -
## History

I was built to house cathedral bells but, the soil on which i stand is too soft, so I don't stand completely upright. I am found in a city about 42 miles west and just south of Florence, Italy

*asked on June 11, 2020* -
## History

famous for my giant, stone statues of huge heads with long ears, I am found about 2300 miles west of Chile in the pacific ocean.

*asked on June 11, 2020* -
## math

Name the corresponding part if polygon WXYZ polygon PQRS. YZ =

*asked on August 1, 2011* -
## statistics

An analysis of variances produce SSbetween = 30, SSwithin = 60, and an F-ratio with df = 2, 15. For this analysis, what is the F-ratio? a. 30/60 = 0.50 b. 60/30 = 2.00 c. 15/4 = 3.75 d. 4/15 = 0.27

*asked on November 14, 2012* -
## statistics

For an independent-measures ANOVA comparing three treatments with a sample of n = 5 in each treatment, what is the critical value for the F-ratio using α = .05? a. 3.88 b. 3.49 c. 3.74 d. 3.34

*asked on November 14, 2012* -
## statistics

Under what circumstances can a very small treatment effect still be significant? a, if the sample size (n) is very large b, if the sample standard deviation is very large c, if the standard error of M is very large d, all of the other factors are likely to

*asked on November 7, 2012* -
## math

A reflection maps the point (2, 3) to the point (-2, 3). It is a reflection over the

*asked on July 21, 2011* -
## statistics

What z-score values form the boundaries for the middle 60% of a normal distribution? a. z = +0.25 and z = –0.25 b. z = +0.39 and z = –0.39 c. z = +0.52 and z = –0.52 d. z = +0.84 and z = –0.84

*asked on October 14, 2012* -
## math

Name the corresponding part if polygon WXYZ polygon PQRS. QP =

*asked on August 1, 2011* -
## Math

Pamela and David walk on the same track. It tqkes Pamela 9 minutes and David 6 minutes to walk one lap.If they start walking at the same time, how many laps will each have walked when they cross the starting point together for the first time?

*asked on October 28, 2009* -
## math

For the transformation T, what is T-1? T : (x, y) (x + 4, y + 3) T-1: (x, y)

*asked on July 21, 2011* -
## math

If a translation maps point (3, 2) to (4, 5); or T : (3, 2) (4, 5), indicate the image for (2, 4).

*asked on July 20, 2011* -
## statistics

An analysis of variance is used to evaluate the mean differences for a research study comparing three treatments with a separate sample of n = 6 in each treatment. If the data produce an F-ratio of F = 4.10, then which of the following is the correct

*asked on November 14, 2012* -
## statistics

A set of X and Y scores has Mx=4, SSx=10, MY=5, SSY=40, and SP=40. What is the regression equation for predicting Y from X? a, =0.25X-4 b, =4X+4 c, =X-6 d, =4X-11

*asked on October 26, 2012* -
## statistics

A vertical line is drawn through a normal distribution at z = 0.50, and separates the distribution into two sections. What proportion of the distribution is in the larger section? a. 0.6915 b. 0.3085 c. 0.1915 d. 0.3830

*asked on October 14, 2012* -
## economics

Gamma Corporation, one of the firms that retains you as a financial analyst, is considering buying out Beta Corporation, a small manufacturing firm that is now barely operating at a profit. You recommend the buyout because you believe that new management

*asked on November 6, 2010* -
## statistics

For an experiment involving 2 levels of factor A and 4 levels of factor B with a sample of n = 5 in each treatment condition, what is the value for dfwithin?

*asked on November 23, 2012* -
## statistics

A researcher administered a treatment to a sample of participants selected from a population of 80. If the researcher obtains a sample mean of M=88. Which combination of factors is most likely to result in rejecting the null hypothesis? a, alpha level=0.01

*asked on November 9, 2012* -
## Statistics

A set of X and Y scores has SSx=10, SSY=20, and SP=8, what is the slope for the regression equation? a. 8/10 b. 8/20 c. 10/8 d. 20/8 For the regression equation, Y=bX+a, which of the following X,Y points will be on the regression line? a. a,b b. b,a c. 0,

*asked on October 22, 2012* -
## chemistry

How is column chromatography and planar chromatography methods are performed?

*asked on May 16, 2020* -
## science

How do the chromosomes of cells from the fetus and the other structure differ

*asked on May 8, 2020* -
## statistics

Which of the following is used to calculate the degrees of freedom for the A x B interaction? a. dfbet. treatments – dfA – dfB b. dfA – dfB c. dfwithin – (dfA + dfB) d. dfbet. treatments – dfwithin

*asked on November 23, 2012* -
## statistics

For which of the following situations would a repeated-measures research design be appropriate? a. comparing mathematical skills for girls versus boys at age 10 b. comparing pain tolerance with and without acupuncture needles c. comparing self-esteem for

*asked on November 11, 2012* -
## statistics

An independent-measures study with n = 6 in each sample, produces a sample mean difference of 4 points and a pooled variance of 12. What is the value for the t statistic? a. 1 b. 2 c. 4/√2 d. 4/√8

*asked on November 11, 2012* -
## Statistics

A set of X and Y scores has SSx=10, SSY=20, and SP=8, what is the slope for the regression equation? a, 8/10 b, 8/20 c, 10/8 d, 20/8

*asked on October 26, 2012* -
## homework help

which temperature is colder? a) 50F b) 50C

*asked on September 26, 2012* -
## algebra 1a

can someone help in solving this and use set builder notations to describe the solution Please 4(8-2x)+2x

*asked on January 30, 2011* -
## mat/116

can someone help in finding the ordered pair for this equation. 7x-9y=63 9y-7x=-63

*asked on January 29, 2011* -
## algebra 1

plz explain how to do this in detail: using only 39 cent and 24 cent stamps, charlie put $7.14 postage on a package he mailed to his sister. if he used twice as many 39 cent stamps as 42 cent stampsp, how many 24 cent stamps did he use??

*asked on March 29, 2011* -
## it/205

o What is the difference between IT and information systems? Describe some functions of information systems.

*asked on April 15, 2010* -
## marketing

: You are working in the product development department of a company that creates household products. Your team has come up with an idea for a revolutionary new cleaning product. Using the seven phases of new product development as a guide, describe how

*asked on January 6, 2010* -
## Physics, finding harmonics

A tuning fork with a frequency of 440 Hz is held above a resonance tube that is partially filled with water. Assuming that the speed of sound in air is 342 m/s, for what three smallest heights of the air column will resonance occur? Where will the nodes

*asked on February 9, 2009* -
## Science

I have to show in a graph my results of the time that my charged balloons stuck to the door, refrigerator, table, cabinet, wall, ceiling, floor and window pane. Could I do this in a bar graph?

*asked on May 4, 2016* -
## Algebra II

Question is Simplify 625^3/4. answer is 125. What isn't the answer +/-125?

*asked on January 12, 2016* -
## Physics

A spaceship of mass 2.0×106kg is cruising at a speed of 4.6×106m/s when the antimatter reactor fails, blowing the ship into three pieces. One section, having a mass of 5.2×105kg , is blown straight backward with a speed of 2.2×106m/s . A second piece,

*asked on December 7, 2014* -
## physics

Suppose a roller-coaster car starts at a height of 39 m with a speed of 2.51 m/s. What will its speed be at height = 0m if the average force of friction is equal to 0.22 times its weight? The total distance traveled is 53m.

*asked on October 13, 2014* -
## Algebra1

-3(x+3)=-3(x+1)-5 how to solve for x please help / the answer has to be 6,,,-6,,,all real numbers,,, or no solution .???????????????????????????????????????

*asked on September 15, 2014* -
## Math

Does randomization relate to real world data?

*asked on September 7, 2014* -
## math

solve and graph 4x+3y=6

*asked on March 18, 2013* -
## School

There are 7 cupcakes for the party. Each cupcake has 1 candle for each year of the birthday boy's age. There is also an extra candle on each cupcake for good luck. If 49 candles were used on the cupcakes, how old is the birthday boy? Explain.

*asked on January 5, 2013* -
## science

if a DNA virus infects a cell, why must it produce RNA?

*asked on December 2, 2012* -
## statistics

A repeated-measures study uses a sample of n = 20 participants to evaluate the mean differences among three treatment conditions. In the analysis of variance for this study, what is the value for dfbetween treatments?

*asked on November 25, 2012* -
## statistics

For an experiment involving 2 levels of factor A and 4 levels of factor B with a sample of n = 5 in each treatment condition, what is the value for dfwithin?

*asked on November 25, 2012* -
## statistics

For an experiment involving 2 levels of factor A and 4 levels of factor B with a sample of n = 5 in each treatment condition, what is the value for dfwithin?

*asked on November 25, 2012* -
## statistics

A repeated-measures study uses a sample of n = 20 participants to evaluate the mean differences among three treatment conditions. In the analysis of variance for this study, what is the value for dfbetween treatments?

*asked on November 23, 2012* -
## statistics

A researcher uses an analysis of variance to test for mean differences among three treatment conditions using a sample of n = 8 participants in each treatment. What degrees of freedom (df) would the F-ratio from this analysis have? a. df = 23 b. df = 2, 23

*asked on November 15, 2012* -
## statistics

The alternative hypothesis for an independent-measures t test states ______. a. There is no mean difference between the two populations being compared. b. There is no mean difference between the two samples being compared. c. There is a non-zero mean

*asked on November 11, 2012* -
## statistics

An independent-measures study with n = 6 in each sample, produces a sample mean difference of 4 points and a pooled variance of 12. What is the value for the t statistic? a. 1 b. 2 c. 4/√2 d. 4/√8

*asked on November 10, 2012* -
## statistics

A normal distribution has a mean of 36 and standard deviation of 4. What proportion of the distribution consisted of scores between x=34 and x=38? a, 0.6915 b, 2(0.3085)=0.6170 c, 0.1915 d, 2(0.1915)=0.3930

*asked on November 9, 2012* -
## statistics

A normal distribution has a mean of 100 and standard deviation of 20. What is the probability of randomly selecting a score less than 130 from this distribution? a, p=0.9032 b, p=0.9332 c, p=0.0968 d, p=0.0668

*asked on November 7, 2012* -
## trig

Solve for x please? x/x+3 - 1/x+2 = x/2x+4

*asked on October 28, 2012* -
## Statistics

For the regression equation, Y=bX+a, which of the following X,Y points will be on the regression line? a, a,b b, b,a c, 0,a d, 0,b

*asked on October 26, 2012* -
## homework help

which of the following are in the correct size order? a) nm, um, cm, mm, m b) m,um,cm, nm, mm c) um,nm,mm,cm,m d) nm,um,mm,cm,m e) none of the above

*asked on September 26, 2012* -
## Algebra 2

If Graham runs up 6 steps of the escalator, then it takes him 46.5 seconds to reach the top of the escalator. If he runs up 13 steps of the escalator, then it takes him only 36.0 seconds to reach the top. How many seconds would it take Graham to reach the

*asked on May 22, 2012* -
## Physics

What is the roll-off rate of the filter described with R = 2.2k and C = 0.0015 picofarad?

*asked on May 15, 2012* -
## Engineering

What is the upper tripper point (UTP) of a comparator with hysteresis if R1 = 47 kÙ, R2 = 68 kÙ and the maximum positive output voltage is 10V?

*asked on April 9, 2012* -
## Physics

What is the upper tripper point (UTP) of a comparator with hysteresis if R1 = 47 kÙ, R2 = 68 kÙ and the maximum positive output voltage is 10V?

*asked on April 4, 2012* -
## math

The team won 16 of its 28 games. What was the team’s won-lost ratio?

*asked on February 7, 2012* -
## English Complements

The sea appearred calm in the morning. Identify the complements?

*asked on December 8, 2011* -
## Math

There is a safe bond B which has 4 years before maturity and pays a coupon of 12% at regular annual intervals and a face value of $100 at maturity. (a) What will be the current price of bond B?

*asked on December 5, 2011* -
## Math

he current term-structure of spot interest rates for safe zero-coupon bonds is as follows: Maturity, in years Interest rate(r) 1 8% 2 10% 3 11% 4 12% 5 13% There is a safe bond B which has 4 years before maturity and pays a coupon of 12% at regular annual

*asked on December 4, 2011* -
## economics

The current term-structure of spot interest rates for safe zero-coupon bonds is as follows: Maturity, in years Interest rate(r) 1 8% 2 10% 3 11% 4 12% 5 13% There is a safe bond B which has 4 years before maturity and pays a coupon of 12% at regular annual

*asked on December 4, 2011* -
## Math

Term-structure of interest rates and Arbitrage The current term-structure of spot interest rates for safe zero-coupon bonds is as follows: Maturity, in years Interest rate (r) 1 8% 2 10% 3 11% 4 12% 5 13% There is a safe bond B which has 4 years before

*asked on December 3, 2011* -
## algebra

GRAPH .08.04.11

*asked on October 10, 2011* -
## math

Two angles are complementary. One of the angles is twice the other. The larger angle has a measure of

*asked on July 23, 2011* -
## math

Given: l | | m m∠4 = 105° and m∠6 = 50°. m∠2 =

*asked on July 23, 2011* -
## math

Two angles are complementary. One of the angles is twice the other. The larger angle has a measure of

*asked on July 23, 2011* -
## accounting

: Are there any differences between the organizations that adopt a particular accounting method? Please explain your answer.

*asked on April 21, 2011* -
## Chemistry

What is the maximum mass of the lower molar mass product that can be formed when 71.0 g of solid barium bromide and 44.5 g chlorine gas react?

*asked on April 10, 2011* -
## mat/117

can someone please help me fiqure this out. factoring polynomials (C-5)-^2

*asked on February 19, 2011* -
## mat/117

can some one help with this polynomial. (C -5)-^2

*asked on February 18, 2011* -
## algebra 1A

solve please on a line graph y-5>-18

*asked on February 4, 2011* -
## algebra 1a

Help and explain please 9m+n=22 m-3n=18

*asked on January 30, 2011* -
## mat/116

Thanks you guys for the past help, but I am stuck on this line graphing. So can someone help in solving and graphing this compound inequality. 9x+1>= -53 or 4x+3>= -9 what would the solution {xlx>...}be.

*asked on January 29, 2011* -
## mat/116

can someone help me in determining wether these numbers are a solutions of this inequality. y-11>2y-2 3,-16,-17,-1

*asked on January 29, 2011* -
## algebra 1

can someone show me how to graph this x+4y=8

*asked on January 15, 2011* -
## algebra1

Find the domain of the function g(x)= 4/3-5x I am sorry this is a fraction

*asked on January 15, 2011* -
## algebra 1

find the slope intercept equation of the line that has the given characteristics. slope 6.7 and y intercept (0,-7) Thanks.

*asked on January 15, 2011* -
## algebra 1

graph the equation by plotting points y= -3

*asked on January 15, 2011* -
## algebra

can someone explain and answer this equation for me. 7y - 6 < 6y -1 Thanks

*asked on December 18, 2010* -
## algebra 1

can some one please help me with this equation using the addition principle -9/5 + x = -2/9 Please explain how you got your answer in all phases. Thanks

*asked on December 8, 2010* -
## algebra 1

Hi Ms. Sue again, I hate to be a pest but how did you get the two in 2/10, I am really brain dead today.

*asked on December 7, 2010* -
## algebra 1

Hi Ms. Sue can you tell me how you got 2/10 in the equation that I submited a few min. ago the equation was, x + 7/10 = - 1/5

*asked on December 7, 2010* -
## algebra 1

I need someone to help me fiqure this equation out and then explain how you got the answer. x + 7/10 = -1/5

*asked on December 7, 2010* -
## algebra 1

use multiplying by 1 to find an expression equivalent to 11/14 with a denomenator of 56c the equivalent expression is-----

*asked on December 5, 2010* -
## algebra 1

Determine which real number corresponds to the situation. The record low temperture for a date is 25.6 degrees below zero. The corresponding number for this sentence is-----.

*asked on December 4, 2010* -
## algebra 1

can you help with this one -7 - (-2)=

*asked on December 4, 2010* -
## algebra 1

what is the solution for this equation -9/16 - 7/16 =

*asked on December 4, 2010* -
## economics

You are planning to estimate a short- run production function for your firm, and you have collected the following data on labor usage (L) and output (Q): Labor usage Output 3 1 7 2 9 3 11 5 17 8 17 10 20 15 24 18 26 22 28 21 30 23

*asked on November 6, 2010* -
## math

can someone help explain how to do this? allen has nickels dimes and quarters in his pocket. the number of nickels is 1 more than twice the number of quarters. the number of dimes is 1 less than the number of quarters. if the value of change in his pocket

*asked on March 28, 2011* -
## 7th math

a/7 x 42/a

*asked on October 9, 2010* -
## algebra

The equations are 6.5x + 8.3y + 7.1 = 0 and -7.2x + 3.4y - 6.6 = 0. Find the slope and x and y intercepts of each equation. For the first equation I got the x intercept as -10.92 and y intercept as -8.55 but I can't figure out the slope. For the second one

*asked on September 23, 2010* -
## Chemistry I

A block of aluminum with a volume of 96.6 cm3 absorbs 66.6 J of heat. If its initial temperature was 32.5 °C, what is its final temperature? (density of aluminum = 2.70 g/cm3

*asked on September 15, 2010* -
## Chemistry I

25.0 mL of ethanol (density = 0.789 g/mL) initially at 4.2°C is mixed with 35.7 mL of water (density = 1.0 g/mL) initially at 25.3°C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?

*asked on September 15, 2010* -
## Chemistry I

When ice melts, it absorbs 0.33 kJ per gram. How much ice is required to cool a 24.0 fluid ounce drink from 75°F to 35°F, if the heat capacity of the drink is 4.18 J/g·°C? (Assume that the heat transfer is 100% efficient.)

*asked on September 15, 2010* -
## pre algebra

Find the five-number summary of the following set of numbers14, 5, 13, 17, 6, 15, 6, 3, 11, 6?

*asked on September 12, 2010*

## Pages

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