2. The IQs of 600 applicants of a certain college are approximately normally distributed with a mean of 115 and a standard deviation of 12. If the college requires an IQ of at least 95, how many of these students willl be rejected on this basis regardless of their other qualifications?

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A: Given : Mean : d = X1 - X2    = 1 σ1 = 2.3σ2 = 2.5 σd = σ12n1+σ22n2     = 2.3250+2.5250= 0.2308=…

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Q: Suppose the neck size of men is normally distributed, with a mean of 15.5 inches and a standard…

A: since multiple parts are given , first 4 subparts are answered. kindly repost for more help .

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A: Z score Computation can be done  using standard formula as shown below.

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