According to the American Time Use Survey results released by the Bureau of Labor Statistics on June
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According to the American Time Use Survey results released by the Bureau of Labor Statistics on June 24, 2015, Americans age 15 and over watched television for an average of 168 minutes per day. Suppose that the current distribution of times spent watching television per day by all Americans age 15 and over has a mean of 168 minutes and a standard deviation of 20 minutes. Let x be the average time spent watching television per day by 400 randomly selected Americans age 15 and over. Find the mean and the standard deviation of the sampling distribution of x. What is the shape of the sampling distribution of x? Do you need to know the shape of the population distribution in order to make this conclusion? Explain why or why not.
DistributionThe word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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168 min 20 min and n 400 The sampling distribution of x i...View the full answer
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