A distributor of personal computers has five locations in a city. In the year's first quarter,the sales in units were: For a goodness-of-fit test that sales were the same for all locations,what is the critical value at the 0.01 level of risk?
A)7.779
B)15.033
C)13.277
D)5.412

Question

A distributor of personal computers has five locations in a city. In the year's first quarter,the sales in units were:  For a goodness-of-fit test that sales were the same for all locations,what is the critical value at the 0.01 level of risk?
A)7.779 
B)15.033 
C)13.277 
D)5.412

Quizplus · Accepted Answer

To conduct a goodness-of-fit test, we use the chi-square distribution. The critical value of chi-square with four degrees of freedom at the 0.01 level of significance is 13.277.

We can look up the critical value in a chi-square distribution table or use a calculator or software. Therefore, the best choice is (C).

A Distributor of Personal Computers Has Five Locations in a City