Question
In: Statistics and Probability
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent."...
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 99% confidence level. What does the confidence interval tell about the population of all college students in the state?
3.5, 2.8, 3.9, 4.6, 3.1, 4.4, 3.5, 4.6, 4.8, 4.3, 4.3, 3.9, 3.1, 3.8, 3.9
What is the confidence interval for the population mean mu? (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. 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 99% confident that the interval from nothing to nothing actually contains the true mean evaluation rating. (Round to one decimal place as needed.)
C. We are confident that 99% of all students gave evaluation ratings between nothing and nothing. (Round to one decimal place as needed.)
Solutions
orchestra answered 2 years agoRelated Solutions
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent."...
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
99% confidence level. What does the confidence interval tell
about the population of all college students in the state?
4.0, 3.2, 4.2, 4.9, 3.0, 4.4, 3.8, 4.9, 4.5, 4.1, 4.1, 4.0, 3.4,
4.2, 3.9
What is the confidence interval for the population mean μ?
___< μ<___. (Round to...
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent."...
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 99%
confidence level. What does the confidence interval tell about the
population of all college students in the state?
3.8, 3.0, 4.0, 4.7, 2.9, 4.1, 3.4, 5.0, 4.8, 3.9, 4.2, 4.0, 3.4,
4.2, 3.6
What is the confidence interval for the population mean
muμ?
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent."...
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
99%
confidence level. What does the confidence interval tell about
the population of all college students in the state?
4.0, 3.0,4.1,4.8, 3.0 ,4.3 ,3.7 ,4.9, 4.2, 4.2 ,4.1
,3.9 ,3.4 ,4.0, 4.0
What is the confidence interval for the population mean μ?
_____<μ<____?
(Round to two decimal places...
Listed below are student evaluation ratings of courses, where a rating of 5 is for excellent....
Listed below are student evaluation ratings of courses, where a
rating of 5 is for excellent. The ratings were obtained at the
University of Texas at Austin and it is normally distributed.
3.5 3.1 3.8 4.7 4.5 4.9 3.9 3.3 4.1 4.7 4.9 3.2 3.3 3.9 4.9 3.8
8.
Construct a 90% confidence level.
What does the confidence level tell us about the population of
all college students in Texas?
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent."...
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? 3.5, 3.0, 4.3,
4.8, 3.1, 4.1, 3.4, 4.5, 4.8, 4.5, 4.3, 3.8, 3.1, 4.2,
3.7
What is the confidence interval for the population mean μ?
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent."...
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 95%
confidence level. What does the confidence interval tell about the
population of all college students in the state? 3.8, 2.9, 3.9,
4.7, 2.9, 4.3, 3.6, 4.8, 4.6, 4.2, 4.1, 3.8, 3.2, 4.1,
3.8 What is the confidence interval for the population mean u?
Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent."...
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 95%
confidence level. What does the confidence interval tell about the
population of all college students in the state? 4.0, 3.0, 4.0,
4.8, 3.1, 4.5, 3.3, 4.9, 4.5, 4.4, 4.3, 3.8, 3.4, 4.0,
3.9
Listed in the accompanying data table are student evaluation ratings of courses and professors, where a...
Listed in the accompanying data table are student evaluation
ratings of courses and professors, where a rating of 5 is for
"excellent." Assume that each sample is a simple random sample
obtained from a population with a normal distribution. a. Use the
93 course evaluations to construct a 99% confidence interval
estimate of the standard deviation of the population from which the
sample was obtained. b. Repeat part (a) using the 93 professor
evaluations. c. Compare the results from part...
Listed below are attractiveness ratings made by participants in a speed dating session. Each attribute rating...
Listed below are attractiveness ratings made by participants in
a speed dating session. Each attribute rating is the sum of the
ratings of five attributes (sincerity, intelligence, fun, ambition,
shared interests).
Use a 0.05 significance level to test the claim that there is a
difference between female attractiveness ratings and male
attractiveness rating by following the steps below:
(a) State the null and alternative hypotheses, indicate the
significance level and the type of test (left-, right-, or
two-tailed test).
(b)...
11. Are Male Professors and Female Professors rated differently. Listed below are student evaluation scores of...
11. Are Male Professors and Female Professors rated differently.
Listed below are student evaluation scores of female and male
professors. Test the claim that female and male professors have the
same mean evaluation rating.
Females 4.4 3.4 4.8 2.9 4.4 4.9 3.5 3.7 3.4 4.8
Males 4/0 3.6 4.1 4.1 3.5 4.6 4.0 4.3 4.5 4.3
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