Answered: Listed below are student evaluation…

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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Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct a confidence interval using a

90%

confidence level. What does the confidence interval tell about the population of all college students in the state?

4.0,

3.1,

4.1,

4.7,

3.1,

4.4,

3.4,

4.4,

4.1,

4.2,

4.6,

4.0,

3.0,

4.0,

3.8

What is the confidence interval for the population mean

μ?

nothing<μ<nothing

(Round to two decimal places as needed.)

What does the confidence interval tell about the population of all college students in the state? Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice.

We are confident that

90%

of all students gave evaluation ratings between

nothing

and

nothing.

(Round to one decimal place as needed.)

We are

90%

confident that the interval from

nothing

actually contains the true mean evaluation rating.

(Round to one decimal place as needed.)

The results tell nothing about the population of all college students in the state, since the sample is from only one university.

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