(Use the Following Information for the Next Three Questions

Multiple Choice

(Use the following information for the next three questions.)
Consider the following scenarios:
SCENARIO A: The research director for a large chain of department stores is interested in examining the sales of a certain product in a sample of stores located on the west coast with sales of the product in a sample of stores located along the east coast in order to determine any differences in sales patterns.
SCENARIO B: The product manager for a large ice cream company believes that sales of his product in supermarkets greatly depends upon the amount of space given to the product in the ice cream section and the amount of in store promotion given his product. To determine if this is the case, the manager collected data from 20 supermarkets.
-Which of the following statistical procedures is NOT appropriate for use with Scenario A?

A) T-test
B) analysis of variance
C) Z-test
D) all of the above would be appropriate
E) none of the above would be appropriate.