Mathematics, 06.11.2019 01:31 abigailweeks10
Given that young's modulus is a quantitative measure of stiffness of an elastic material. suppose that for aluminum alloy sheets of a particular type, its mean value and standard deviation are 70 gpa and 1.6 gpa, respectively.
a. if x is the sample mean young's modulus for a random sample of n = 16 sheets, the sampling distribution of x centered at 70 gpa, and the standard deviation of the x distribution is given by
b. if x is the sample mean young's modulus for a random sample of n = 64 sheets, the sampling distribution of x centered at 70 gpa, and the standard deviation of the x distribution is given by
Answers: 3
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Given that young's modulus is a quantitative measure of stiffness of an elastic material. suppose th...
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