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...
icon
Related questions
Question
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.)
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

steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON