Carry out a chi-square test for goodness of fit for each of the following studies (use the

Question:

Carry out a chi-square test for goodness of fit for each of the following studies (use the .01 level for each). In each situation, the observed numbers are shown; the expected numbers are equal across categories.
(a) Category A, 10; Category B, 10; Category C, 10; Category D, 10; Category E, 60.
(b) Category A, 5; Category B, 5; Category C, 5; Category D, 5; Category E, 30.
(c) Category A, 10; Category B, 10; Category C, 10; Category D, 10; Category E, 160.