A statistics professor at an all-womenʹs college determined that the standard deviation of womenʹs heights is
2.5 inches. The professor then randomly selected 41 male students from a nearby all-male college and found
the standard deviation to be 2.9 inches. Test the professorʹs claim that the standard deviation of male heights is
greater than 2.5 inches. Use $\alpha$ = 0.01.

Question

Quizplus · Accepted Answer

The Answer of A statistics professor at an all-womenʹs college determined that the standard deviation of womenʹs heights is
2.5 inches. The professor then randomly selected 41 male students from a nearby all-male college and found
the standard deviation to be 2.9 inches. Test the professorʹs claim that the standard deviation of male heights is
greater than 2.5 inches. Use $\alpha$ = 0.01.

A Statistics Professor at an All-Womenʹs College Determined That the Standard