esearchers are concerned about the impact of students working while they are enrolled in classes, and they'd like to now if students work too much and therefore are spending less time on their classes than they should be. First, the searchers need to find out, on average, how many hours a week student are working. survey of 100 students provides a sample mean of 8.2 hours worked, with a SD of 4.6. What is a 99% confidence terval based on this sample? What is the upper bound of this confidence interval? Input at least 3 decimal places. nswer:

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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Researchers are concerned about the impact of students working while they are enrolled in classes, and they'd like to
know if students work too much and therefore are spending less time on their classes than they should be. First, the
researchers need to find out, on average, how many hours a week student are working.
A survey of 100 students provides a sample mean of 8.2 hours worked, with a SD of 4.6. What is a 99% confidence
interval based on this sample? What is the upper bound of this confidence interval? Input at least 3 decimal places.
Answer:
Transcribed Image Text:Researchers are concerned about the impact of students working while they are enrolled in classes, and they'd like to know if students work too much and therefore are spending less time on their classes than they should be. First, the researchers need to find out, on average, how many hours a week student are working. A survey of 100 students provides a sample mean of 8.2 hours worked, with a SD of 4.6. What is a 99% confidence interval based on this sample? What is the upper bound of this confidence interval? Input at least 3 decimal places. Answer:
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