A manufacturer of automotive shock absorbers is interested in comparing the durability of its shocks absorbers with its competitor. One shock absorber from each manufacturer are installed on each rear wheels of six cars. After the cars had been driven for 20000 km, the strength of each test shock absorber was measured and recorded. Results of the test shock are shown below. 2. Car 1 3 4 6 Manufacturer 8.9 10.7 12.5 9.7 9.5 13.2 Shock Competitor 9.9 10.2 12.1 9.3 9.0 13.4 Do the data present sufficient evidence to conclude that there is a difference in the mean strength of the two types of shocks after 20000 km of use? Use a = 0.05 .

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Consider the following Exercise. Calculate the corresponding confidence interval
and describe the relationship between the hypothesis test and the confidence
interval for each problem.

 

A manufacturer of automotive shock absorbers is interested in comparing the
durability of its shocks absorbers with its competitor. One shock absorber from
each manufacturer are installed on each rear wheels of six cars. After the cars had
been driven for 20000 km, the strength of each test shock absorber was measured
and recorded. Results of the test shock are shown below.
2.
Car
1
2
4
Manufacturer
8.9
10.7
12.5
9.7
9.5
13.2
Shock
Competitor
9.9
10.2
12.1
9.3
9.0
13.4
Do the data present sufficient evidence to conclude that there is a difference in the
mean strength of the two types of shocks after 20000 km of use? Use a = 0.05.
Transcribed Image Text:A manufacturer of automotive shock absorbers is interested in comparing the durability of its shocks absorbers with its competitor. One shock absorber from each manufacturer are installed on each rear wheels of six cars. After the cars had been driven for 20000 km, the strength of each test shock absorber was measured and recorded. Results of the test shock are shown below. 2. Car 1 2 4 Manufacturer 8.9 10.7 12.5 9.7 9.5 13.2 Shock Competitor 9.9 10.2 12.1 9.3 9.0 13.4 Do the data present sufficient evidence to conclude that there is a difference in the mean strength of the two types of shocks after 20000 km of use? Use a = 0.05.
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