The Basic Practice of Statistics
The Basic Practice of Statistics
8th Edition
ISBN: 9781319042578
Author: David S. Moore, William I. Notz, Michael A. Fligner
Publisher: W. H. Freeman
Question
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Chapter 17.3, Problem 11AYK

(a)

To determine

To find: The P-value if the mean GMAT score x¯=542 .

To test: Whether the outcome is statistically significant at α=0.05 level or not.

To test: Whether the outcome is statistically significant at α=0.01 level or not.

(b)

To determine

To find: The P-value if the mean GMAT score x¯=532 .

To test: Whether the outcome is statistically significant at α=0.05 level or not.

To test: Whether the outcome is statistically significant at α=0.01 level or not.

(c)

To determine

To explain: The reason for P-values which gives one outcome is strong evidence against the null hypothesis while the other outcome is not.

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