# Question: Use the results of the simulation study summarized in Table

Use the results of the simulation study, summarized in Table 7.2, to answer the following questions.

a. Which of skewness or heavy-tailedness appears to have the stronger effect on the chi-square tests?

b. For a given population distribution, does increasing the sample size yield a values more nearly equal to the nominal value of .05? Justify your answer, and provide reasons why this may occur.

c. For the short-tailed distribution (uniform), the actual probability of Type I error is smaller than the specified value of .05. Provide both a negative and a positive impact on the chi-square test of having a decrease in the specified value of α.

a. Which of skewness or heavy-tailedness appears to have the stronger effect on the chi-square tests?

b. For a given population distribution, does increasing the sample size yield a values more nearly equal to the nominal value of .05? Justify your answer, and provide reasons why this may occur.

c. For the short-tailed distribution (uniform), the actual probability of Type I error is smaller than the specified value of .05. Provide both a negative and a positive impact on the chi-square test of having a decrease in the specified value of α.

## Relevant Questions

Find the value that locates an area α in the upper tail of the F distribution; that is, find Fα for the following values of α and degrees of freedom. a. α = .05, df1 5 7, df2 = 9 b. α = .025, df1 = 9, df2 = 7 c. α = ...The SAT Reasoning Test is an exam taken by most high school students as part of their college admission requirements. A proposal has been made to alter the exam by having the students take the exam on a computer. The exam ...The risk of an investment is measured in terms of the variance in the return that could be observed. Random samples of 10 yearly returns were obtained from two different portfolios. The data are given next (in thousands of ...Find the following percentiles for a chi-square distribution with df = 18. a. x2.05 b. x2.01 c. x2.95 d. x2.025 e. x2.03 f. x2.94 Baseballs vary somewhat in their rebounding coefficient. A baseball that has a large rebound coefficient will travel farther when the same force is applied to it than a ball with a smaller coefficient. To achieve a game in ...Post your question