25 students are randomly chosen to evaluate an online learning application for a course assignment at College of Business at UNT. They are asked to rate the app on a scale from 1 to 5, with 1 being very bad and 5 being very good. The results of the survey reveal that the average rating is 4.22. Assume that the population standard deviation is known to be 0.5 based on similar studies in the past. The department is only interested in purchasing this application for that course if the true mean rating is more than 4. What is the calculated value of the test statistic? 1.96 1.645 4.22 0.22 2.2
25 students are randomly chosen to evaluate an online learning application for a course assignment at College of Business at UNT. They are asked to rate the app on a scale from 1 to 5, with 1 being very bad and 5 being very good. The results of the survey reveal that the average rating is 4.22. Assume that the population standard deviation is known to be 0.5 based on similar studies in the past. The department is only interested in purchasing this application for that course if the true mean rating is more than 4. What is the calculated value of the test statistic? 1.96 1.645 4.22 0.22 2.2
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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Transcribed Image Text:For Questions 19-22, consider the following:
25 students are randomly chosen to evaluate an online learning application for a course assignment at
College of Business at UNT. They are asked to rate the app on a scale from 1 to 5, with 1 being very
bad and 5 being very good. The results of the survey reveal that the average rating is 4.22. Assume that
the population standard deviation is known to be 0.5 based on similar studies in the past. The
department is only interested in purchasing this application for that course if the true mean rating is
more than 4.
What is the calculated value of the test statistic?
3
O 1.96
O 1.645
O 4.22
O 0.22
2.2
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