Are Japanese managers more motivated than American managers? A randomly selected group of 100 managers from each group were administered the Sarnoff Survey of Attitudes Toward Life (SSATL),which measures motivation for upward mobility.The mean and standard deviation of the SSATL scores are computed.The standard deviations of the SSATL scores suggest that the standard deviation from the two groups is very different.Which of the following tests will be the most appropriate?
A)t test for the mean.
B)Z test for the proportion.
C)Pooled-variance t test.
D)Separate-variance t test.

Question

Quizplus · Accepted Answer

Given the difference in standard deviations between the two groups, a separate-variance t test (also known as Welch's t-test) is most appropriate. This test does not assume equal variances between the two groups, making it suitable for this scenario.

Are Japanese Managers More Motivated Than American Managers? a Randomly