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a) What is the purpose of a Wilcoxon signed-rank test? Explain.
b) The Wilcoxon signed-rank test resembles which parametric test(s)? Explain.
c) What is the purpose of a Kruskal-Wallis test? Explain.
d) The Kruskal-Wallis test is analogous to which parametric test? Explain.
The level of satisfaction in a consumer survey would represent what level of measurement?
The ages of the cadets in the sample will form a normal distribution.
Test the hypothesis that there is no difference in the mean scores of Exam 1 and Exam 2 against the alternative that the average is greater for the second exam.
Construct a 95% confidence interval estimate for the population proportion of administrative professionals who prefer cash bonuses.
How many observations were in the original data set? In the bottom row of the stem and leaf display identify the stem the leaves and the numbers in the original data set represented by this stem and its leaves.
A. What is the 90% confidence interval for the daily sales at all restaurants. B. What is the probability that the average sales are really $32,000 or more per day? Assume that the population average is $30,000 per day and the std. Deviation is $2..
The 99% confidence interval using a t-distribution is ( ), ( ). Round to one decimal place as needed
Compute the appropriate test statistic to test Ho: p = 80/100 vs. Ha: p > 80/100.
Why use the Wilcoxon T test. What is the hypothesis statements you used? Consider do we prefer working with dependent samples or independent samples? Explain
Could mud-wrestling be the cause of a rash contracted by University of Washington students in the spring of 1992? Two physicians at the University of Washington health center wondered this when one male and six female students complained of rashes..
A survey of 500 internet users found that the users were online an average of 6.5 hours a week with a standard deviation of 3.1 hours. If 49 internet users are randomly selected what is the probability that their average time online will be more t..
What effect has the transformation had on the lowest exam mark and what effect has the transformation had on the highest exam mark - STATS 201/8 Data Analysis
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