Are Japanese managers more motivated than American managers? A randomly selected

Question

Are Japanese managers more motivated than American managers? A randomly selected group of each were administered the Sarnoff Survey of Attitudes Toward Life (SSATL), which measures motivation for upward mobility. The SSATL wore are summarized below. Referring to Table 10-1, judging from the way the data were collected, which test would likely be most appropriate employ? A. Z test for the difference between two proportions B. F test for the ratio of two variances C. Pooled-variance r test for the difference between two means D. Paired r test.

Explanation / Answer

we will use F test here as to make comparisions,

F = variation between sample means / variation within the samples

we wont use t test because sample size is more than 30 ,

thus for comparing mean strength of two population we are left with option ANOVA which is

based on F test .

Z test is not useful here because we dont need to check for difference between proportions(related to proportion of sample from population)

thus option B is correct.

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