37. A researcher is interested in whether teenagers have changed how much they watch TV nowadays. Historically, it was known that teenagers watched 20 hours of TV per week with a standard deviation of 4 hours. Our researcher took a random sample of 50 teenagers and found that on average they watched 15 hours of TV per week with a standard deviation of 6 hours. Suppose the researcher was testing at the .01 level of significance and they got a P-value of .0086. What conclusion should they make? Group of answer choices Fail to reject the null hypothesis, teenagers watch the same amount of TV as in the past. Fail to reject the null hypothesis, there is not enough evidence to show that teenagers watch less tv than in the past Reject the null hypothesis, teenagers don’t watch the same amount of TV as in the past. Reject the null hypothesis, teenagers watch less TV than in the past
37. A researcher is interested in whether teenagers have changed how much they watch TV nowadays. Historically, it was known that teenagers watched 20 hours of TV per week with a standard deviation of 4 hours. Our researcher took a random sample of 50 teenagers and found that on average they watched 15 hours of TV per week with a standard deviation of 6 hours. Suppose the researcher was testing at the .01 level of significance and they got a P-value of .0086. What conclusion should they make? Group of answer choices Fail to reject the null hypothesis, teenagers watch the same amount of TV as in the past. Fail to reject the null hypothesis, there is not enough evidence to show that teenagers watch less tv than in the past Reject the null hypothesis, teenagers don’t watch the same amount of TV as in the past. Reject the null hypothesis, teenagers watch less TV than in the past
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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37. A researcher is interested in whether teenagers have changed how much they watch TV nowadays. Historically, it was known that teenagers watched 20 hours of TV per week with a standard deviation of 4 hours. Our researcher took a random sample of 50 teenagers and found that on average they watched 15 hours of TV per week with a standard deviation of 6 hours.
Suppose the researcher was testing at the .01 level of significance and they got a P-value of .0086. What conclusion should they make?
Group of answer choices
Fail to reject the null hypothesis, teenagers watch the same amount of TV as in the past.
Fail to reject the null hypothesis, there is not enough evidence to show that teenagers watch less tv than in the past
Reject the null hypothesis, teenagers don’t watch the same amount of TV as in the past.
Reject the null hypothesis, teenagers watch less TV than in the past
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