Answered: You are given the sample mean and the…

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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Part 1

The 90% confidence interval is

(enter your response here

,enter your response here

(Round to two decimal places as needed.)

Part 2

The 95% confidence interval is

(enter your response here

,enter your response here

(Round to two decimal places as needed.)

Part 3

Which interval is wider? Choose the correct answer below.

The 95% confidence interval

The 90% confidence interval

Part 4

Interpret the results.

You can be certain that the mean record high temperature was within the 90% confidence interval for approximately

of the

days, and was within the 95% confidence interval for approximately

of the

days.

You can be certain that the population mean record high temperature is either between the lower bounds of the 90% and 95% confidence intervals or the upper bounds of the 90% and 95% confidence intervals.

You can be 90% confident that the population mean record high temperature is between the bounds of the 90% confidence interval, and 95% confident for the 95% interval.

You can be 90% confident that the population mean record high temperature is outside the bounds of the 90% confidence interval, and 95% confident for the 95% interval.

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