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Two new machines for producing tires have been proposed by a worker in a manufacture. The manufacture believes there will be no difference in the strength of tires produced by these machines. To test this hypothesis, a sample of 9 tires produced by machine 1 and 7 tires produced by machine 2 were randomly selected. It is known from previous experience that the strength of a tire produced using machine 1 is a normal random variable with standard deviation equals to 3. And the strength of a tire produced using machine 2 is also a normal random variable with standard deviation equals to 4. use the following :information to answer the following questions Machine 2 Machine 1 6.2 4.0 4.1 3.5 3.2 2.8 3.2 5.2 1.5 4.0 6.0 1.0 4.0 5.7 3.8 4.0 [X-X,] Find the estimated difference mean strength of tires produced using both machines 0.06 None of these 0.25- 2,070 2.18-O

Two new machines for producing tires have been proposed by a worker in a manufacture. The manufacture believes there will be no difference in the strength of tires produced by these machines. To test this hypothesis, a sample of 9 tires produced by machine 1 and 7 tires produced by machine 2 were randomly selected. It is known from previous experience that the strength of a tire produced using machine 1 is a normal random variable with standard deviation equals to 3. And the strength of a tire produced using machine 2 is also a normal random variable with standard deviation equals to 4. use the following :information to answer the following questions Machine 2 Machine 1 6.2 4.0 4.1 3.5 3.2 2.8 3.2 5.2 1.5 4.0 6.0 1.0 4.0 5.7 3.8 4.0 [X-X,] Find the estimated difference mean strength of tires produced using both machines 0.06 None of these 0.25- 2,070 2.18-O

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Two new machines for producing tires have been proposed by a worker in a manufacture. The manufacture believes there will be no difference in the strength of tires produced by these machines. To test this hypothesis, a sample of 9 tires produced by machine 1 and 7 tires produced by machine 2 were randomly selected. It is known from previous experience that the strength of a tire produced using machine 1 is a normal random variable with standard deviation equals to 3. And the strength of a tire produced using machine 2 is also a normal random variable with standard deviation equals to 4. use the following :information to answer the following questions Machine 2 Machine 1 6.2 4.0 4.1 3.5 3.2 2.8 3.2 5.2 1.5 4.0 6.0 1.0 4.0 5.7 3.8 4.0 (X,-X,] Find the estimated difference mean strength of tires produced using both machines 0.06 None of these 0.25- 2.070 2.18-O
Transcribed Image Text:Two new machines for producing tires have been proposed by a worker in a manufacture. The manufacture believes there will be no difference in the strength of tires produced by these machines. To test this hypothesis, a sample of 9 tires produced by machine 1 and 7 tires produced by machine 2 were randomly selected. It is known from previous experience that the strength of a tire produced using machine 1 is a normal random variable with standard deviation equals to 3. And the strength of a tire produced using machine 2 is also a normal random variable with standard deviation equals to 4. use the following :information to answer the following questions Machine 2 Machine 1 6.2 4.0 4.1 3.5 3.2 2.8 3.2 5.2 1.5 4.0 6.0 1.0 4.0 5.7 3.8 4.0 (X,-X,] Find the estimated difference mean strength of tires produced using both machines 0.06 None of these 0.25- 2.070 2.18-O
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