udents? The data below shows the results of a survey of 20 college students asking hem how many days elapse between haircuts. Assume that the distribution of the opulation is normal. 3, 44, 49, 47, 32, 38, 30, 40, 45, 48, 34, 37, 48, 37, 35, 42, 42, 31, 40, 50 Copy to clipboard 'hat can be concluded at the = 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?v Select an answer H1: ? Select an answer c. The test statistic ? v = (please show your answer to 3 decimal
udents? The data below shows the results of a survey of 20 college students asking hem how many days elapse between haircuts. Assume that the distribution of the opulation is normal. 3, 44, 49, 47, 32, 38, 30, 40, 45, 48, 34, 37, 48, 37, 35, 42, 42, 31, 40, 50 Copy to clipboard 'hat can be concluded at the = 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?v Select an answer H1: ? Select an answer c. The test statistic ? v = (please show your answer to 3 decimal
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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Question

Transcribed Image Text:The average American gets a haircut every 44 days. Is the average smaller for college
students? The data below shows the results of a survey of 20 college students asking
them how many days elapse between haircuts. Assume that the distribution of the
population is normal.
43, 44, 49, 47, 32, 38, 30, 40, 45, 48, 34, 37, 48, 37, 35, 42, 42, 31, 40, 50
Copy to clipboard
What can be concluded at the = 0.10 level of significance?
a. For this study, we should use Select an answer
b. The null and alternative hypotheses would be:
Но:
Select an answer
? v Select an answer v
c. The test statistic ? v
(please show your answer to 3 decimal
places.)
Expert Solution

Step 1
Given
Sample size = 20
Sample sum = 812
Sample mean = 40.6
Step by step
Solved in 3 steps with 2 images

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