# statistics

posted by
**michel** on
.

. In his management information systems textbook, Professor David Kroenke raises an interesting point: “If 98% of our market has Internet access, do we have a responsibility to provide non-Internet materials to that other 2%? Suppose that 98% of the customers in your market do have Internet access, and you select a random sample of 500 customers with a standard error of the mean of .006261. What is the probability that the sample has

a. Greater than 99% of the customers with internet access?

b. Between 97% and 99% of the customers with Internet access?

c. Fewer than 97% of the customers with Internet access?