A Coffee Shop Franchise Owner Is Looking at Two Possible

Multiple Choice

A coffee shop franchise owner is looking at two possible locations for a new shop.To help make a decision he looks at the number of pedestrians that go by each of the two locations in one-hour segments.At location A,counts are taken for 35 one-hour units and with a mean number of pedestrians of 421 and a sample standard deviation of 122.At the second location (B) ,counts are taken for 50 one hour units with a mean number of pedestrians of 347 and a sample standard deviation of 85.Assume the two populations variances are not known but are equal.Calculate the pooled estimate of .

A) 10362.42
B) 101.80
C) 22.40
D) 503.32