beigedeer304Lv1
13 Nov 2021
Problem 65
Page 506
Section: HOMEWORK
Chapter 9: HYPOTHESIS TESTING WITH ONE SAMPLE
Textbook ExpertVerified Tutor
13 Nov 2021
Given information
One claim is that teenagers spent 4.5 hours per week, on average, on the phone while another is that the mean is higher.
The null and alternate hypothesis are to be stated.
Step-by-step explanation
Step 1.
Let be the mean number of hours per week that teenagers spend on the phone. The claim that teenagers spend 4.5 hours per week on the phone can be represented as:
Since the claim contains the equality, it is the null hypothesis.
The claim that the mean is higher than 4.5 hours can be represented as:
Since the claim contains the inequality it is the alternate hypothesis.
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