TABLE 10-1
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 scores are summarized below.

-Referring to Table 10-1, give the null and alternative hypotheses to determine if the mean SSATL score of Japanese managers differs from the mean SSATL score of American managers.

Question

TABLE 10-1
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 scores are summarized below.
 
-Referring to Table 10-1, give the null and alternative hypotheses to determine if the mean SSATL score of Japanese managers differs from the mean SSATL score of American managers.
A) H₀: μA - μJ ≥ 0 versus H₁: μA - μJ < 0 
B) H₀: μA - μJ ≤ 0 versus H₁: μA - μJ > 0 
C) H₀: μA - μJ = 0 versus H₁: μA - μJ ≠ 0 
D) H₀: - = 0 versus H₁: - ≠ 0

Quizplus · Accepted Answer

The null hypothesis states that there is no difference between the mean SSATL score of Japanese managers and American managers while the alternative hypothesis states that there is a difference between the mean SSATL score of Japanese managers and American managers. This fits with choice C, H₀: μA - μJ = 0 versus H₁: μA - μJ ≠ 0, as it is a two-tailed test checking for a difference in means. The other options are incorrect because they either have the wrong direction of inequality or use strange coding for the mean parameters.

TABLE 10-1 Are Japanese Managers More Motivated Than American Managers? a Randomly