A journal reported that the average screen time of teenagers is 6.77 hours per week. You gathered 30 independent samples from your class and obtained an average screen time of 7.8 hours per week, with a sample standard deviation of 2.9 hours. At alpha = 0.10, is this enough evidence to say that the average screen time of your class is higher than the reported screen time? What is the mean value for the null hypothesis?
A journal reported that the average screen time of teenagers is 6.77 hours per week. You gathered 30 independent samples from your class and obtained an average screen time of 7.8 hours per week, with a sample standard deviation of 2.9 hours. At alpha = 0.10, is this enough evidence to say that the average screen time of your class is higher than the reported screen time? What is the mean value for the null hypothesis?
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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A journal reported that the average screen time of teenagers is 6.77 hours per week. You gathered 30 independent samples from your class and obtained an average screen time of 7.8 hours per week, with a sample standard deviation of 2.9 hours. At alpha = 0.10, is this enough evidence to say that the average screen time of your class is higher than the reported screen time? What is the
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