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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How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.09 kg.
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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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If you must estimate the population mean within 2 days, how many outside salespeople should you sample? Use the 90 percent confidence level.
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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