Wedding Costs. According to Bride’s Magazine, getting married these days can be expensive when the costs of the reception, engagement ring, bridal gown, pictures—just to name a few—are included. A simple random sample of 20 recent U.S. weddings yielded the following data on wedding costs, in dollars.

19,496 23,789 18,312 14,554 18,460 27,806 21,203 29,288 34,081 27,896 30,098 13,360 33,178 42,646 24,053 32,269 40,406 35,050 21,083 19,510

a. Use the data to obtain a point estimate for the population mean wedding cost, μ, of all recent U.S. weddings. (Note: The sum of the data is $526,538.)

b. Is your point estimate in part

(a) likely to equal μ exactly? Explain your answer.