Question

Steele Electronics Inc. sells expensive brands of stereo equipment in several shopping malls. The marketing research department of Steele reports that 43% of the customers entering the store that indicate they are browsing will, in the end, make a purchase. Let the last 32 customers who enter the store be a sample. a. How many of these customers would you expect to make a purchase? (Round the final answer to the nearest whole number.) Number of Customers b. What is the probability that exactly seven of these customers make a purchase? (Round the final answer to 4 decimal places.) Probability c. What is the probability 20 or more make a purchase? (Round the final answer to 4 decimal places.) Probability d. Does it seem likely at least one will make a purchase ("likely" refers if the probability is more than 70%)?

Answer 1