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Calculating the p-value to compare Japanese and American managers

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Are Japanese managers more motivated than American managers? A randomly selected group of each were administered the Sarnoff Survey of Attitude Toward Life, which measures motivation for upward mobility. The scores are summarized below>

(see chart in attached file).

Referring to the table, suppose that the test statistic is Z = 2.45. Find the p value if we assume that the alternative hypothesis was a two-tailed test.

A. 0.0071
B. 0.0142
C. 0.4929
D. 0.9858.

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The solution shows how to calculate a p-value to determine whether Japanese or American managers are more motivated.

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