Mathematics, 12.12.2019 20:31 carelee7496

Young's modulus is a quantitative measure of stiffness of an elastic material. suppose that for metal sheets of a particular type, its mean value and standard deviation are 75 gpa and 2.1 gpa, respectively. suppose the distribution is normal. (round your answers to four decimal ) calculate p(74 ? x ? 76) when n = 25.(b)how likely is it that the sample mean diameter exceeds 76 when n = 49?

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