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Question 1: The populations must all be normally distributed, what is meant by normally distributed?
Question 2: The population variances must be equal, what are population variances?
The samples for each treatment must be selected randomly and independently, what is meant by treatment?
Determine the test value? Use α = 0.05. (Use the variances unequal formula).
Suppose that distribution is normally distributed. If worker at this fast food restaurant is chosen at random,determine the probability that worker earns more than $6.75?
Compute the difference scores for following data from repeated-measures study.
Find out the suitable critical value(s) for this situation given a 0.05 significance level. Find out/compute the value of sample test statistic.
At significance levels of .05 and .01 test H 0 : the factors A and B are independent.
A point estimate for the difference between the mean purchases of the users of the two credit cards is:
Solve this problem explicitly using all five steps of hypothesis testing, and illustrate your answer with a sketch showing the comparison distribution
What does confidence interval tell you? What does it mean? What 2 things can a researcher do to decrease width of a confidence interval? What are the effects?
Carry out the ANOVA and, if essential, post-hoc comparisons. Make a graph to represent group differences, and interpret ANOVA in a paragraph written in APA style.
What IQ score should one have in order to be eligible for Mensa?
What is the distribution of sample means.
Please use a combination of content and supportive examples.
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