Author Question: A dummy origin in a transportation problem is used when supply exceeds demand. Indicate whether ... (Read 136 times)

ashley · **on:** Jun 24, 2018

A dummy origin in a transportation problem is used when supply exceeds demand.
Indicate whether the statement is true or false

Question 2

We are interested in determining whether the variances of the sales at two music stores (A and B) are equal. A sample of 25 days of sales at store A has a sample standard deviation of 30, while a sample of 16 days of sales from store B has a sample standard deviation of 20 . The test statistic is _____.
a. 1.50
b. .67
c. 1.56
d. 2.25