Purchasing magazine reported the results of a survey in which buyers were asked a series of questions with regard to Internet usage.

Purchasing magazine reported the results of a survey in which buyers were asked a series of questions with regard to Internet usage. One question asked was how they would use the Internet if security and other issues could be resolved. Seventy-eight percent said they would use it for pricing information, 75% said they would use it to send purchase orders. Assume that these percentages hold true for all buyers. A researcher randomly samples 20 buyers and asks them how they would use the Internet if security and other issues could be resolved.(a) What is the probability that exactly 14 of these buyers would use the Internet for pricing information? (b) What is the probability that between 10 and 15 of these buyers would use the Internet for pricing information, inclusive? (c) What is the probability that fewer than 12 would use the Internet to send purchase orders? (d) How likely that more than 16 would use the Internet to send purchase orders? 

SOLUTIONPurchasing magazine reported the results of a survey in which buyers were asked a series of questionswith regard to Internet usage. One question asked was how they would use the Internet...