Are Japanese Managers More Motivated Than American Managers? a Randomly

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.