The breaking strengths of cables produced bya manufacturer have mean 1800 lbs. and standard deviation 100 Ibs. By a new technique in the manufacturing process, it is claimed that the breaking strength can be increased. To test this claim,a sample of 50 cables is tested, and it is found that the mean breaking strength is 1850 lb.The claim is supported using 0.01 level of significance.
The breaking strengths of cables produced bya manufacturer have mean 1800 lbs. and standard deviation 100 Ibs. By a new technique in the manufacturing process, it is claimed that the breaking strength can be increased. To test this claim,a sample of 50 cables is tested, and it is found that the mean breaking strength is 1850 lb.The claim is supported using 0.01 level of significance.
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter29: Tolerance, Clearance, And Interference
Section: Chapter Questions
Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...
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Determine the test to be used to test the claim in each of the following problems. Justify your answer.
1. The breaking strengths of cables produced bya manufacturer have mean 1800 lbs. and standard deviation 100 Ibs. By a new technique in the manufacturing process, it is claimed that the breaking strength can be increased. To test this claim,a sample of 50 cables is tested, and it is found that the mean breaking strength is 1850 lb.The claim is supported using 0.01 level of significance.
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