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A large company examines the annual salaries for all of the men and women performing a certain job and finds that the means and standard deviations are $32,120 and $3,240, respectively, for the men and $34,093 and $3521, respectively, for the women.
The best way to determine if mean salaries for the population of men is larger than that of women in this company is:

a) Compute a 95% confidence interval for the difference.
b) Subtract the two sample means.
c) Test the hypothesis that the population means are the same versus that they are different.
d) Test the hypothesis that the population means are the same versus that the mean for men is higher.

Respuesta :

Answer:

b) Subtract the two sample means.

Step-by-step explanation:

As the company examines the annual salaries for all of the men and women performing a certain job, and calculate the means and standarde deviation, there is no need to calculate a confidence interval or testing the hypothesis, as the means are population means.

Then, the best way to determine if the mean salaries for the population of men is larger that of women in this company is just substract the two sample means, that are the population means within this company.

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