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​%...

















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<><>

​(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.







A.


We are confident that
90​%

of all students gave evaluation ratings between
nothing

and
nothing.


​(Round to one decimal place as​ needed.)






B.


We are
90​%

confident that the interval from
nothing

to
nothing

actually contains the true mean evaluation rating.

​(Round to one decimal place as​ needed.)






C.


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















Jun 01, 2022
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