Exhibit 12-7
You want to test whether or not the following sample of 30 observations follows a normal distribution. The mean of the sample equals 11.83, and the standard deviation equals 4.53.
-Refer to Exhibit 12-7. The number of intervals or categories used to test the hypothesis for this problem is
A)4
B)5
C)6
D)10

Question

Exhibit 12-7
You want to test whether or not the following sample of 30 observations follows a normal distribution. The mean of the sample equals 11.83, and the standard deviation equals 4.53. 
-Refer to Exhibit 12-7. The number of intervals or categories used to test the hypothesis for this problem is
A)4 
B)5 
C)6 
D)10

Quizplus · Accepted Answer

The number of intervals or categories used in a hypothesis test is typically determined by the data or the specific requirements of the test. In this context, the correct choice is 6, which is a common number of categories used in statistical tests like chi-square tests for goodness of fit or independence.

Exhibit 12-7 You Want to Test Whether or Not the Following Sample