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 98% confidence level. What does the confidence interval tell about the population of all college students in the state? 3.8, 3.0, 3.9, 5.0, 3.1, 3.9, 3.4, 4.8, 4.4, 4.1, 4.2, 4.0, 3.4, 4.2, 3.6 O What is the confidence interval for the population mean µ? (Round to two decimal places as needed.)
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
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A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
Question:
Part 2:
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.
The results tell nothing about the population of all college students in the state, since the sample is from only one university.
B.
We are 98% confident that the interval from ___to___
actually contains the true mean evaluation rating.
(Round to one decimal place as needed.)
C.
We are confident that 98% of all students gave evaluation ratings between ___ and ___
(Round to one decimal place as needed.)
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