This question is similar to Exercise 14 on page 363 of the textbook.A random sample of 15 observations is used to estimate the population mean. The sample mean andthe standard deviation are calculated as 172 and 38, respectively. Assume that the population isnormally distributed.a.With 90 confidence, what is the margin of error for the estimation of the population mean?b. Construct the 90% confidence interval for the population mean.C. Construct the 95% confidence interval for the population mean.d. Construct the 83% confidence interval for the population mean. Hint: you need to use Excelfunction=t.inv.2t to find the value of t for the interval calculation.

The sample mean is 172 and the standard deviation is 38.

Answered: This question is similar to Exercise 14…

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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