TABLE 10-2
A researcher randomly sampled 30 graduates 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. Analysis of the mean salaries of the females and males in the sample is given below.

-Referring to Table 10-2, the researcher was attempting to show statistically that the female MBA graduates have a significantly lower mean starting salary than the male MBA graduates. According to the test run, which of the following is an appropriate alternative hypothesis?

Question

TABLE 10-2
A researcher randomly sampled 30 graduates 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. Analysis of the mean salaries of the females and males in the sample is given below.

-Referring to Table 10-2, the researcher was attempting to show statistically that the female MBA graduates have a significantly lower mean starting salary than the male MBA graduates. According to the test run, which of the following is an appropriate alternative hypothesis?

Quizplus · Accepted Answer

The alternative hypothesis should state that the mean starting salary for female graduates is less than the mean starting salary for male graduates, as this is the theory the researcher is attempting to prove statistically. Therefore, the appropriate alternative hypothesis is μfemales < μmales. Choice B correctly states this relationship.

TABLE 10-2 A Researcher Randomly Sampled 30 Graduates of an MBA Program