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.

a. Use the data to obtain a point estimate for the population mean wedding cost, μ, of all recent U.S. weddings. The sum of the data is $526,538.
b. Is your point estimate in part (a) likely to equal μ exactly? Explain your answer.

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19496 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#06 35,050 21,083 19,510