poll used a sample of 100 randomly selected car owners. Within the sample, the mean time of ownership for a single car was 7.18 years with a standard deviation of 3.37 years. Test the claim by the owner of a large dealership that the mean time of ownership for all cars is less than 7.5 years. Use a 0.05 significance level. Find the Z score and P value and if left-tailed or right-tailed. Also to reject or not too
poll used a sample of 100 randomly selected car owners. Within the sample, the mean time of ownership for a single car was 7.18 years with a standard deviation of 3.37 years. Test the claim by the owner of a large dealership that the mean time of ownership for all cars is less than 7.5 years. Use a 0.05 significance level. Find the Z score and P value and if left-tailed or right-tailed. Also to reject or not too
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
100%
poll used a sample of
100
randomly selected car owners. Within the sample, the
7.18
years with a standard deviation of
3.37
years. Test the claim by the owner of a large dealership that the mean time of ownership for all cars is less than
7.5
years. Use a 0.05 significance level.
Find the Z score and P value and if left-tailed or right-tailed. Also to reject or not too.
Expert Solution
Step 1
Given:
Sample size n = 100
Standard deviation s = 3.37
Significance level = 0.05
Formula Used:
Step by step
Solved in 3 steps with 2 images
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