Section 6.1 (please help with TI-84 calculator commands when possible)An admissions director wants to estimate the mean age of all students enrolled at a college. The estimate must be within1.3years of the population mean. Assume the population of ages is normally distributed.(a) Determine the minimum sample size required to construct a90%confidence interval for the population mean. Assume the population standard deviation is1.8years.(b) The sample mean is21years of age. Using the minimum sample size with a90%level of confidence, does it seem likely that the population mean could be within8%of the sample mean? within9%of the sample mean? Explain.A). The minimum sample size required to construct a 90% confidence interval is _________ students. (Round to the nearest whole number) B) The 90% confidence interval is ________ , _________ . It (1) does or does not. Seem likely that the population mean could bed within 8% of the sample mean because 8% off from the sample mean would fall (2) outside or inside the confidence interval. It (3) does or does not seem likely that the population mean could be within 9% of the sample mean because 9% off from the sample mean would fall (4) inside or outside the confidence interval . (Round to 2 decimal places as needed)

Answered: Section 6.1 (please help with TI-84…

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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Section 6.1 (please help with TI-84 calculator commands when possible)

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

1.3

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

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

of the sample mean? within

of the sample mean? Explain.

A). The minimum sample size required to construct a 90% confidence interval is _________ students. (Round to the nearest whole number)

B) The 90% confidence interval is ________ , _________ . It (1) does or does not. Seem likely that the population mean could bed within 8% of the sample mean because 8% off from the sample mean would fall (2) outside or inside the confidence interval. It (3) does or does not seem likely that the population mean could be within 9% of the sample mean because 9% off from the sample mean would fall (4) inside or outside the confidence interval . (Round to 2 decimal places as needed)

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