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 average 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 mean
B) Z test for proportion
C) pooled-variance t test
D) separate-variance t test

Question

Quizplus · Accepted Answer

The separate-variance t test is appropriate when comparing the means of two groups with different variances, as indicated by the differing standard deviations in the SSATL scores.

Are Japanese Managers More Motivated Than American Managers? a Randomly