An admissions director wants to estimate the mean age of all students enrolled at a college. The estimate must be within

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An Admissions Director Wants To Estimate The Mean Age Of All Students Enrolled At A College The Estimate Must Be Within 1 (16.53 KiB) Viewed 95 times

An admissions director wants to estimate the mean age of all students enrolled at a college. The estimate must be within 13 years of the population an Assume the population of ages is really detribut (a) Determine the minimum sample sine required to construct a 90% confidence interval for the population mean Assume the population standard destion is 18 years (b) The sample mean is 20 years of age Using the minimun simple size with a 90% level of confidence, does it soorsikaly that the population mean could be within of the sangle meant with 10% of the samp Explain Click here to cope 1 of the Standard Normal Table. Click here to view 2006 2 of the Standard Na Table (a) The minimum sample size required to construct a 90% confidence interval issues (Round up to the nearest whole number) b) The 90% confidence interval is 11 the confidence interval mean (Hound to two decimal places as needed) ely that the population mean could be within 9% of the same as because the interval fumed by the kely that the population mean could be within 10% of the sample viles y othe the interval formed by the st the contence interval