A researcher randomly sampled 30 graduates, 18 males and 12 females, of an MBA program and recorded data concerning their starting salaries. Of primary interest to the researcher was the effect of gender on starting salaries. Statistics of the mean salaries of the females and males in the sample were computed. The sample standard deviations suggest that the variability of starting salaries of the two groups is almost the same. Suppose the starting salaries from both groups can be considered as normally distributed. Which of the following tests will be the most appropriate?
A) Pooled-variance t test B) Wilcoxon rank sum test.
C) Separate-variance t test D) Paired t test
Question 2
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
Bluehead wrasse males with yellow females of the species. If the blueheaded male is removed from a t
In some species, dominant females have more surviving offspring that mature earlier indicating an ad
The most polygynous primates live in groups with many more females than males.
The basalt below the hominins is dated to 1.8 million years ago, and the geomagnetic polarity of the
Risk-taking behavior by young males.
Sample Program for Changing Daily Caloric Intake (cont.)