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A study on the correlation between sleep quality and academic performance of SHS students is done by some PRACRES students. A random sample of 8 students is taken and the data for the number of hours of sleep per night (in hours) is recorded below: 4 4.5 5 5 5.5 6 6.5 7 Find the sample mean and the sample standard deviation. [Select] Determine a 90% confidence interval for the true average, assuming the number of hours of sleep follows a normal distribution. [ Select] Based on the computed interval, is there a reason to believe the claim that the true average number of hours of sleep is equal to 6.0 hours? [Select]

A study on the correlation between sleep quality and academic performance of SHS students is done by some PRACRES students. A random sample of 8 students is taken and the data for the number of hours of sleep per night (in hours) is recorded below: 4 4.5 5 5 5.5 6 6.5 7 Find the sample mean and the sample standard deviation. [Select] Determine a 90% confidence interval for the true average, assuming the number of hours of sleep follows a normal distribution. [ Select] Based on the computed interval, is there a reason to believe the claim that the true average number of hours of sleep is equal to 6.0 hours? [Select]

MATLAB: An Introduction with Applications
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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A study on the correlation between sleep quality and academic performance of SHS students is done by some PRACRES students. A random sample of 8 students is taken and the data for the number of hours of sleep per night (in hours) is recorded below: 4 4.5 5 5 5.5 6 6.5 7 Find the sample mean and the sample standard deviation. [Select] Determine a 90% confidence interval for the true average, assuming the number of hours of sleep follows normal distribution. [ Select] < Based on the computed interval, is there a reason to believe the claim that the true average number of hours of sleep is equal to 6.0 hours? [Select]
Transcribed Image Text:A study on the correlation between sleep quality and academic performance of SHS students is done by some PRACRES students. A random sample of 8 students is taken and the data for the number of hours of sleep per night (in hours) is recorded below: 4 4.5 5 5 5.5 6 6.5 7 Find the sample mean and the sample standard deviation. [Select] Determine a 90% confidence interval for the true average, assuming the number of hours of sleep follows normal distribution. [ Select] < Based on the computed interval, is there a reason to believe the claim that the true average number of hours of sleep is equal to 6.0 hours? [Select]
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