A simple random sample consists of 65 lengths of piano wire that were tested for the amount
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A simple random sample consists of 65 lengths of piano wire that were tested for the amount of extension under a load of 30 N. The average extension for the 65 lines was 1.102 mm and the standard deviation was 0.020 mm. Let μ represent the mean extension for all specimens of this type of piano wire.
a. Find the P-value for testing H0 :μ ≤ 1.1 versus H1 :μ > 1.1.
b. Either the mean extension for this type of wire is greater than 1.1 mm, or the sample is in the most extreme % of its distribution.
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a To find the Pvalue for this hypothesis test we need to find the probability that a sampl...View the full answer
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