A rivet is to be inserted into a hole. A random sample of n = 15 parts is selected and the hole diameter is measured. The sample standard deviation is $ = 0.005 millimeters. Is there strong evidence to indicate that the standard deviation of hole diameter exceeds 0.01 millimeters? Use a = 0.01. (a) Calculate the test statisticxy . Round your answer to two decimal places (e.g. 98.76).

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A: normal distribution μ = 100σ = 15P(95<x<125) = ?

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A: Given that  Mean = 100 , Standard deviation = 15

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Q: Sacks of grain have an average weight of 120 Kilograms. It is found that 10% of the bags are over…

A: let X: weight of the bags.X~N(μ,σ)where  mean(μ)=120 kg.and given P(X>125)=10%=0.10  find…

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Mean is 100 and standard deviation is 15.

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