Business, 22.08.2019 02:30, gracethegreat1

At the end of 1990, 1991, and 1992, the average prices of a share of stock in a portfolio were $34.83, $34.65, and $31.26 respectively. to investigate the average share price at the end of 1993, a random sample of 30 stocks was drawn and their closing prices on the last trading day of 1993 were observed with a mean of 33.583 and a standard deviation of 19.149. estimate the average price of a share of stock in the portfolio at the end of 1993 with a 90 percent confidence interval.

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At the end of 1990, 1991, and 1992, the average prices of a share of stock in a portfolio were $34.8...