Develop a 95 percent confidence interval for population mean
Question: A recent study by an automobile dealer revealed the mean amount of profit per car sold for a sample 20 salespeople was $290, with a standard deviation of $125. Develop a 95 percent confidence interval for the population mean.
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A recent study by an automobile dealer revealed the mean amount of profit per car sold for a sample 20 salespeople was $290, with a standard deviation of $125. Develop a 95 percent confidence interval for the population mean.
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Was it realistic to imagine that the Berlin Wall would fall or that the USSR would crumble or that apartheid would end in South Africa or that a black man would reside in the White House?
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