[See Steps] As the Chief of Statistical Analysis for the Environmental Protection Agency your task Is to derive the Estimate of the Population Mean for the
Question: As the Chief of Statistical Analysis for the Environmental Protection Agency your task Is to derive the Estimate of the Population Mean for the miles per gallon obtained by 2012 Luxury Automobiles. Your staff has randomly selected 64 luxury
automobiles, The arithmetic mean from that sample was of 32 miles per gallon. The standard deviation of 11 miles per gallon was obtained from the Agency's national data base. Estimate the population mean with 80% confidence interval. Assume the
population standard deviation is known.
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