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Is this right?? Stats..

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stats
is there a good, relevant sites where i can get stats extra help?

C++ Programming
Design and create a class named Stats that has an array of 12 doubles as one of its member variables. The values in the array should be set by making 12 calls to a public member function named setValue that accepts two arguments, an integer indicating which value is being ...

stats homework help
A true-false test consists of 50 questions. how many does a student have to get right to convince you that he is not merely guessing Explain

math stats
A true-false test consists of 50 questions. how many does a student have to get right to convince you that he is not merely guessing Explain

stats
A two-tailed test is conducted at the 5% significance level. What is the right tail percentile required to reject the null hypothesis?

Stats
A two-tailed test is conducted at the 5% significance level. What is the right tail percentile required to reject the null hypothesis?

Stats
So i have a test in stats tomorrow and im trying to work on my study guide but im stuck at this question : Construct a confidence interval for the proportion for each case 90 percent interval 861 out of 2500. please help.

stats
a test consists of 25 multiple choice questions. Each has 5 possible answers, which only one is correct. If a student guesses on each question, find the following: a) prob that he will guess all of them right b)prob that he will guess at most 12 right c) prob that he will ...

Is this right?? Stats....
How many green elements are required to make this a legitimate probability distribution if there are a total of 50 elements in this sample? x red blue orange brown green P(x) 0.20 0.16 0.28 0.24 Would it be 0.12??

Stats
Find the P-value for a left tailed hypothesis test with a test statistic of z= -1.77. Decide wether to reject the null if the level of significance is alpha= 0.05. Please help I've tried everything and I can't figure out how to get the right answer..

Math-stats
The playing times of 20 songs on a top-hits radio station are recorded in the chart below. Playing Time (minutes:seconds) 3:32 3:24 2:54 3:07 4:52 3:45 2:39 3:09 3:34 3:26 3:35 4:17 4:03 3:52 5:10 4:59 3:07 4:00 3:07 2:56 In a histogram of this data, which bar would have the ...

Stats
Use technology to find the P-value for right-tailed test with n=8 and test statistic t equals 2.531 Find the P value

Introduction programing visual basic
break even analysis. suppose a certain product sells for a dollars per unit. then the revenue from selling x units of the product is ax dollars if the cost of producting each unit of the product is b dollars and the company has overhead cost of c dollars then the total cost of...

Introduction programing visual basic
break even analysis. suppose a certain product sells for a dollars per unit. then the revenue from selling x units of the product is ax dollars if the cost of producting each unit of the product is b dollars and the company has overhead cost of c dollars then the total cost of...

Stats
Make a boxplot of the salaries. To the right is a stem-and-leaf plot of the salaries for the 2006 New York Yankees. The stems are millions of dollars; the leaves are hundreds of thousands. For example, the "5|4" represents the 5.4 million dollars earned by Kyle Farnsworth. 0 ...

Prob & Stats
A medical researcher gave 100 patients a new drug to see if it reduces their blood pressure? Did the new drug reduce the patients' blood pressure? Write your hypothesis mathematically. Not sure how to do this, Prob & Stats has been quite a struggle for me

stats
Our students were asked to rate their admiration of Hillary Rodham Clinton on a scale of 1 to 7. They were asked to rate their Jennifer Lopez and Venus Williams on a scale of 1 to 7. The mean rating of Clinton was 4.06 with a standard deviation of 1.70. The mean rating of ...

stats
Our students were asked to rate their admiration of Hillary Rodham Clinton on a scale of 1 to 7. They were asked to rate their Jennifer Lopez and Venus Williams on a scale of 1 to 7. The mean rating of Clinton was 4.06 with a standard deviation of 1.70. The mean rating of ...

stats
two factor ANOVA indep measures exper. 2 level factor A 3 level factor B n=5 in each treatment SS df ms between 240 5 factor A ? 1 ? Fa=24 factor B ? 2 ? AxB 60 2 30 within ? 24 5 are this answers right for SS A=120 B=80 w/I=120

Health
Which statement defines your righs as a consumer? 1 the right to information, 2 the right to consumer protection by the government, and 3.... The right to complain. The right to avoid fraud. The right to evaluate claims. The right to not pay. (MY ANSWER)

stats
if you randomly answer a t/f test and want to figure the possibililty of gettng at least an 80......how do you start and then once you have done this, what if you want to try it 4 more times? HELP Let N be the number of questions. You are asking for the probability of getting ...

Math
Solve the puzzle =RIGHT(LEFT($B$2,84),1) =RIGHT(LEFT($B$2,17),1) =RIGHT(LEFT($B$2,138),1) =RIGHT(LEFT($B$2,2),1) =RIGHT(LEFT($B$2,234),1) =RIGHT(LEFT($B$2,138),1) =RIGHT(LEFT($B$2,4),1) =RIGHT(LEFT($B$2,173),1) =RIGHT(LEFT($B$2,2),1) =RIGHT(LEFT($B$2,209),1) =RIGHT(LEFT($B$2,4...

Is this right?? Stats....
Classify the following as discrete or continuous random variables. (A) The time it takes to run a marathon (B) The number of fractions between 1 and 2 (C) A pair of dice is rolled, and the sum to appear on the dice is recorded (D) The length of a broad jump I got: (A) ...

stats
Use this z-score formula for this problem: z = (x - mean)/(sd/√n) x = 1.25, 1.50 mean = 1.35 sd = 0.25 n = 40 Calculate two z-scores, then use a z-table to determine probability between the two scores. I hope this will help get you started. •stats. - Christina, Monday...

Social Studies
The First Amendment protects which rights? (Select 2) - the right to own a gun - the right to a fair trial ** - the right to practice a religion (or not) ** - the right to criticize the government - the right of owning property help

ap stats
based on over 800 housing prices collected at random from the city of Los Angeles, an investigator constructed a histogram and found that the distribution of housing prices was heavily skewed to the right. Which of the following statistics will best represent the center of ...

Social studies
The first amendment protects which rights? Select all that apply. The right to own a gun? The right to a fair trial?** The right to practice a religion(or not)? The right to criticize the government?** The right of owning property?

Social studies
The First Amendment protects which rights? Select all that apply (2 points) A). the right to own a gun B). the right to a fair trail C).the right to practice a religion (or not) D).the right to critize the government E). The right of owning property

Stats
Can someone please show me how to solve this step by step. I'm trying to understand the whole concept but I'm getting confused... Find the sample linear correlation coefficient between x and y: x: 5, 2, 2 y: 7, 4, 7 x^2: 25, 4, 4 y^2: 49, 16, 49 xy: 35, 18, 14 I know how to ...

stats please help test tom
When a computerized generator is used to generate random digits, the proability that any particular digit in the set {0,1,2, . . .,9} is generated on any individual trial is 1/10-0.1. suppose that we are generating digits one at a time and are interested in tracking ...

Stats- need someone to check
Doing this assignment and was wondering if i got the right answers According to the Census Bureau publication Current Population Reports, the probability distribution for household size (number of people per household, say X) in the United States is as follows. For the purpose...

stats:find the mean
please help! i know exactly how to find the mean but i am having a problem finding the midpoints. couldn't get them right :( salary employees 5,001- 10,000 == 16 10,001-15,000 == 15 15001-20,000 == 11 20,001-25,000 == 15 25,001-30,000 == 23

math
What is outliers? how do you solve this problem? please give me some answers. In statistics outliers are data points that very far from the mean. There are some rules of thumb for determining them, but I don't recall them right off hand and don't want to reach for the text ...

stats
If SS = 50 and s^2 = 10, what is n?

Stats
A certian company enjoyed 3.5% profits in year 1 over its revenue in Year 0. In Year 2, it enjoyed 5.75% profits over Year 1. In Year 3, it posted 1.25% profits over Year 2. What single, constant profit over this period of years would have produced the same profit? The teacher...

American Constutional Law
Which right is NOT explicitly mentioned in the Bill of Rights? A. Right to privacy B. Right to bear arms C. Right to due process D. Right to grand jury indictment in capital cases I am confused on this one. They are all mentioned, but it says "right to jury" and not "grand ...

Social Studies
The first Amendment protects which rights? Select all that apply the right to own a gun the right to a fair trial the right to practice a religion (or not) the right to criticize the government the right of owning property What do the 15th, 19th, and 26th Amendments have in ...

College Stats
Is .09 less than .05?

stats
given n=74 an x=32.find ^p and ^q

English
1. Dokdo was recorded as part of Korea in the 500s. <in the 500s =in the five hundreds (right?) It is from 'in 500' to 'in 599.' Am I right?> 2. People can fly in the 2000s. < in the 2000s = in the two thousands (right?) It is from 'in 2000' to 'in 2999.' Am I right...

English
1. He raised his right hand a little. 2. He raised his right hand a bit. 3. He raised his right hand slightly. 4. He raised his right hand a lot. 5. He raised his right hand much. 6. He raised his right hand a little. 7. He raised his right hand just a little bit. 8. He raised...

Stats
Determine the following random variables discrete or continuous: a)Number of fish I caught during 2 hours? I said: discrete b)Temperature of a coffee cup? I said: continuous c)Height of a 2-year-old maple tree? I said: continuous d) Number of credit cards I have in my wallet? ...

American Government
1.)Most amendments have _____. =a)expanded and clarified the principles embodied in the Constitution b)radically changed and undermined the principles of the Constitution c)been approved just by Congress d)restricted the right to vote 2.)What is the defining right of a ...

stats
write a brief paragraph addressing the question. Which is more likely, that a person is killed by lightning, or that a person is killed by lightning while playing golf in a thunderstorm? I believe it would be while playing golf due to holding the metal golf club, acting as a ...

stats
if we reject the null hypothesis, we conclude that:

stats
Compute the following and show your steps 7! /5!.

stats
what does it mean to say alpha is set at 0.5

math stats
how do i draw a histogram for the data (8,0,7,5,5)

Stats
What is the spread? How can it be found from a set of numbers?

math stats
Calculate p ̅. x1 20 n1 50 x2 55 n2 100

Stats
Which of the following numbers could be a proabilty of an event 0, 1.15, 0.03, -0.43, 1, 0.34

Stats
How do you find SSA, SSB & SSE??

stats
A sample has a mean of M = 73 and a standard deviation of s = 5

Stats
A random sample of dates taken from headstones at a cemetery in Pleasanton, California, showed an average lifespan of 70 years with a standard deviation of 20 years. Assuming the distribution is unimodal, which of the following is most likely a good description of the ...

Chemistry130
Can someone please help me with this? Are these substances acids or bases? 1. Tums- Base, right? 2. Vitamin C- Acid, right? 3. Nail Polish Remover- Base or Acid? 4. Coca Cola Pop- Acid, right? 5. Cream of Tarter- Acid, right? 6. Calamine Lotion- Base or Acid? 7. Lemon Juice- ...

stemplot one more question
No, I don't think you should round the data. The stems should probably be the numbers 13,14,15,...,19 Line them up like this with the leafs to the right S L 13 |9 14 |8,9 15 |2,8 . . . You can finish it. Starting the stems with 1 would accomplish nothing here. You can order ...

Did i do this right??? STATS
3. In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14 patients using the drug is selected. Find the probability that: (A) exactly two will have this mild side effect (B) at least three will have this ...

math
The scale balanced when n+20=80 Suppose the left side becomes n+3 How can I change the right side so that n+3=____ is equivalent to n+20=80 How can I change the right side to get an equivalent equation my choices are A. Add blank to the right side B. Divide the right side by ...

stats
how does one make a residual plot please?

Stats
What are variance and covariance? What do they mean? What are their differences/relationship?

geography
what are some tricks that will; help me remember the stats and the capitles

stats
Let z be a random variable with a standard normal distribution, P(-1.9<=z<=2.1)

stats
Mean is 60 and standard deviation is 7. what percentage is 73 and below.

Stats
If a confidence interval for the mean is 24.8 < ì < 29.6. What is the margin of error?

maths stats
Please unscramlbe aaeebllnn which is a name. Thanks

Stats
what is the range of data with a total of 1000 values?

bussi./stats
what is the probability that a loaf of bread is between 22.75 and 23.00?

STATS
If Ho: μ = 50 and Ha: mu. = 59 and s = 10 what is αlpha if x exceeds 56for n=25

stats 250
A z-score of z = +3.00 indicates a location that is the following

stats
what is the lower and upper limit for -645.321?

Stats
Explain what it means to have a deviation score of -18

Physics
If I wanted to right SIGMA F = ma in the proper notation what would I put above and below SIGMA Would I put a lower case "n" above SIGMA and "i = 0" below it and then put a subscript "i" under the "F" thank you I have been woundering about this as it makes sense to include ...

Physics
If I wanted to right SIGMA F = ma in the proper notation what would I put above and below SIGMA Would I put a lower case "n" above SIGMA and "i = 0" below it and then put a subscript "i" under the "F" thank you I have been woundering about this as it makes sense to include ...

stats
how do you construct a relative frequency table based on an ogive?

stats
How would r change if researchers had recordered the proportions?

stats
if you know the mean and standard deviation, how do you determine the proportion that will and will not be included

stats
what is the distinction between repeated measurements and matched items?

STATS
What percentage of the area of the standard normal distribution is between z = -1.00 and z = +1.00? How do you know this?

health/stats
can cholesterol follow a normal distribution exactly? why or why not?

math
In constructing a box-and-whisker plot for the data set below, at which values would you draw the left and right sides of the box? 6, 7, 1, 3, 9, 3, 2, 5, 8, 4, 8 A. left at 3; right at 8 B. left at 2; right at 8 C. left at 2; right at 7 D. left at 3; right at 7

Math/Statistics
does anyone know anyting about standard deviation... I have no idea what it is! http://en.wikipedia.org/wiki/Standard_deviation http://www.robertniles.com/stats/stdev.shtml

stats
x and y independent exponential r.v with respctive parameters 2 and 3. find the cdf and density of z = x/y.

stats
find standard deviation for this problem daily precip- frequency-31,1,0,2,0,1 0.oo-0.49 0.50-0.99 1.00-1.49 1.50-1.99 2.00-2.29 2.50-2.99

Stats
If X is a normal random variable with mean 60, and a standard deviation of 2, find: A: P (X<58) B: P(X>63) C: P(57<X<64)

psy Stats.
how do you Calculate percentage when given standard deviation and mean

Stats
Can you tell me what ∑xy means? Like is in the sum of all x times y or what?

Stats
Find the mean and standard deviation of the following probability distribution: x 1 2 3 P(x) 0.3 0.5 0.2

stats
if income in the us was normally distributed, what z-score would represent the top 1%?

stats
using a calculator need p value on a r tailed test if the n=9 and the t is 3.204

stats & prob.
Given the values of n=5, p= 0.15, and (1-p)=0.85, calculate the standard deviation of the data.

stats
Given a standard normal variable. What is the probability that z lies between 1.48 and 2.13

stats
What does the best estimate mean after doing the liner regression equation

Stats help
What does the best estimate mean after doing the liner regression equation

stats
how to find the are for a standard normal curve that cuts off the upper 1.1%

Stats
Need help finding the area under the normal curve between z = -1.0 and z = -2.0?

stats
what is the probability that a 6 digit phone number contains at least one 8?

AP Stats
transformation necessary to linearize the data. Be sure to convince me that you understand.

Stats
What is the best measure to describe the total variability in a population or sample?

statistics
what does this mean i have to do this in a spreadsheet Descriptive stats for each numeric variable

Chemistry HELP
Can someone help me with these....I just need to make sure they are right and if not can you help me figure out the right one's? What is the chemical name of the active ingredient in each item.... 1. Tums- calcium carbonate, right? 2. Vitamin C- ascorbic acid, right? 3. Nail ...

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