In a recent season, the population standard deviation of the yards per carry for all running backs
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In a recent season, the population standard deviation of the yards per carry for all running backs was 1.21. The yards per carry of 20 randomly selected running backs are listed. Assume the yards per carry are normally distributed.
Use the standard normal distribution or the t-distribution to construct a 95% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret the results. If convenient, use technology to construct the confidence interval.
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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Related Book For 
Elementary Statistics Picturing The World
ISBN: 9780321911216
6th Edition
Authors: Ron Larson, Betsy Farber
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