In a sample size of 30, selected from a left-skewed population, the sample mean is 25 with a standard deviation of 12. Would it be appropriate to use a t-test to test the null hypothesis H0:?= 22? Discuss.

In a sample size of 30, selected from a left-skewed population, the sample mean is 25 with a standard deviation of 12. Would it be appropriate to use a t-test to test the null hypothesis H0:?= 22? Discuss.

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.2: Expected Value And Variance Of Continuous Random Variables

Problem 10E

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Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

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