Question
An English course organizer claims that 89% of the enrolled participants are satisfied with the teachers' performance: Some in a group of 119 participants question
An English course organizer claims that 89% of the enrolled participants are satisfied with the teachers' performance: Some in a group of 119 participants question the claim, and 99 of them confirm that they are indeed satisfied with the teachers' performance.
a. Find the 95% confidence interval for the actual proportion of satisfied participants.
b. Assuming that the claim of the organizer is correct, find the probability that only 99 out of 119 participants are satisfied with the teacher's performance.
Step by Step Solution
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Step: 1
Organizes claims theet 89 of the enolled participants ane satistied P 08 9 3D P 089 Ho ...
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Essentials Of Statistics For The Behavioral Sciences
Authors: Frederick J Gravetter, Larry B. Wallnau
8th Edition
1133956572, 978-1133956570
