An admissions director wants to estimate the mean age of all students enrolled at a college. The estimate must be within 1.6.years of the population mean. Assume the population of ages is normally distributed. (a) Determine the minimum sample size required to construct a 90% confidence interval for the population mean. Assume the population standard deviation is 1.8 years. (b) The sample mean is 20 years of age. Using the minimum sample size with a 90% level of confidence, does it seem likely that the population mean could be within 10% of the sample mean? within 119% of the sample mean? Explain. Click here to view page 1 of the Standard Normal Table, Click here to view page 2 of the Standard Normal Table, (a) The minimum sample size required to construct a 90% confidence interval is students. (Round up to the nearest whole number.) V seem likely that the population mean could be within 10% of the sample mean because 10% off from the sample mean would fall v the confidence interval. V the confidence (b) The 90% confidence interval is ( lel D.It interval. It seem likely that the population mean could be within 11% of the sample mean because 11% off from the sample mean would fall (Round to two decimal places as needed.)

An admissions director wants to estimate the mean age of all students enrolled at a college. The estimate must be within 1.6.years of the population mean. Assume the population of ages is normally distributed. (a) Determine the minimum sample size required to construct a 90% confidence interval for the population mean. Assume the population standard deviation is 1.8 years. (b) The sample mean is 20 years of age. Using the minimum sample size with a 90% level of confidence, does it seem likely that the population mean could be within 10% of the sample mean? within 119% of the sample mean? Explain. Click here to view page 1 of the Standard Normal Table, Click here to view page 2 of the Standard Normal Table, (a) The minimum sample size required to construct a 90% confidence interval is students. (Round up to the nearest whole number.) V seem likely that the population mean could be within 10% of the sample mean because 10% off from the sample mean would fall v the confidence interval. V the confidence (b) The 90% confidence interval is ( lel D.It interval. It seem likely that the population mean could be within 11% of the sample mean because 11% off from the sample mean would fall (Round to two decimal places as needed.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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