EP FUNDAMENTALS OF STAT.-MYLAB STAT.ACC
5th Edition
ISBN: 9780135960004
Author: Sullivan
Publisher: PEARSON CO
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Chapter B.3, Problem 3AYU
To test H0: σ = 50 versus H1: σ < 50, a random
- (a) If the sample standard deviation is determined to be s = 47.2, compute the test statistic.
- (b) If the researcher decides to test this hypothesis at the α = 0.05 level of significance, determine the critical value.
- (c) Draw a chi-square distribution and depict the critical region.
- (d) Will the researcher reject the null hypothesis? Why?
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Chapter B.3 Solutions
EP FUNDAMENTALS OF STAT.-MYLAB STAT.ACC
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