Previously it was reported that teenagers spend an average of 4.5 hours per week on the phone. An organization claims the mean is higher and randomly samples fifteen teenagers. The sample mean is 4.75 hours and the sample standard deviation is 2.0 hours. Conduct a hypothesis test to see whether sample data supports the claim at the 5% significant level. Your answer should include the following: Null Hypothesis Alternative Hypothesis Significance level Sample mean Sample standard deviation P-value Decision (Reject or Do Not Reject) Conclusion (Complete statement including the word “significantly
Previously it was reported that teenagers spend an average of 4.5 hours per week on the phone. An organization claims the mean is higher and randomly samples fifteen teenagers. The sample mean is 4.75 hours and the sample standard deviation is 2.0 hours. Conduct a hypothesis test to see whether sample data supports the claim at the 5% significant level. Your answer should include the following: Null Hypothesis Alternative Hypothesis Significance level Sample mean Sample standard deviation P-value Decision (Reject or Do Not Reject) Conclusion (Complete statement including the word “significantly
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Previously it was reported that teenagers spend an average of 4.5 hours per week on the phone.
An organization claims the mean is higher and randomly samples fifteen teenagers.
The sample mean is 4.75 hours and the sample standard deviation is 2.0 hours.
Conduct a hypothesis test to see whether sample data supports the claim at the 5% significant level.
Your answer should include the following:
Null Hypothesis
Alternative Hypothesis
Significance level
Sample mean
Sample standard deviation
P-value
Decision (Reject or Do Not Reject)
Conclusion (Complete statement including the word “significantly”)
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