A manufacturing company reports average annual sales nationwide of 32.4 million per franchise store. The 10 franchise stores in one geographic area have annual sales of 33.6 million, with a standard deviation (using n - 1) of 1.2 million.
a. State the non directional hypothesis.
b. Determine the critical t for a = .01.
c. Calculate t, using the sample standard deviation as the estimated population standard deviation. Show your work.
d. Was this franchise's sales volume significantly different from the national average?