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1. Choose a variable and collect data for a least three different groups(samples). Compare the means of the three groups using the one-way ANOVA technique. Complete the following:
a. Write a brief statement of purpose of the study
b. Define the population
c. State how the sample was selected
d. What alpha value did you use?
e. State the hypotheses
f. What was F test value?
g. State the decision
h. Summarize the results.
Would you play this game if you wanted to make money? What do we expert the value of the results of the game to be?
Find the expected value of the number of tests taken.
A certain state lottery awards 418 prizes; 28-$200 prizes, 120-$25 prizes and 270-$20 prizes, for every 10,000 tickets sold.
Polls showed the two main candidates in 2004 presidential election were nearly tied on the day before the election. To predict the winner a newspaper would like to have a poll that has a margin of error of less than 1%.
White blood cell counts for a group of volunteers before being innoculated, and white blood cell counts for a second group of volunteers after being innoculated.
Use this information to find the upper and lower limits of the first class if you wish to construct a frequency distribution with 10 classes.
Woodco manufactures tables and chairs. Each table and chair must be made entirely out of oak or entirely out of pine. A total of 150 board feet of oak and 210 board feet of pine are available.
Construct a 95% confidence interval for the population mean service charge if a customer's account falls below the $1,500 minimum.
Would the method described above be a good way to determine which team was taller (explain why or why not)?
A seven year old study reported that women whose mothers used the drug DES during pregnancy were twice as likely to develop tissue abnormalities that might lead to cancer as women whose mothers did not take the the drug.
Suppose the horses in a large stable have a mean weight of 1464 lbs, and a standard deviation of 111. What is the probability that the mean weight of the sample horses would differ from the population mean by less than 11 lbs if 34 horses are samp..
The sample size n , the sample means, and the sample standard deviations for the two groups are given below.
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