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5. According to a guidance counselor, an average student spent less than 7 hours each day for school works. A sample of 100 students in a certain school reveals that the mean hours spent of the students is 6.5 hours with a standard deviation of 0.8. Determine whether the claim of the guidance counselor is correct against the population mean of 7 hours with 95% confidence level.

5. According to a guidance counselor, an average student spent less than 7 hours each day for school works. A sample of 100 students in a certain school reveals that the mean hours spent of the students is 6.5 hours with a standard deviation of 0.8. Determine whether the claim of the guidance counselor is correct against the population mean of 7 hours with 95% confidence level.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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5. According to a guidance counselor, an average student spent less than 7 hours each day for school works. A sample of 100 students in a certain school reveals that the mean hours spent of the students is 6.5 hours with a standard deviation of 0.8. Determine whether the claim of the guidance counselor is correct against the population mean of 7 hours with 95% confidence level.
Transcribed Image Text:5. According to a guidance counselor, an average student spent less than 7 hours each day for school works. A sample of 100 students in a certain school reveals that the mean hours spent of the students is 6.5 hours with a standard deviation of 0.8. Determine whether the claim of the guidance counselor is correct against the population mean of 7 hours with 95% confidence level.
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