Suppose the scores earned on Professor McArthurs third statistics exam are normally distributed with mean 64 and standard deviation 8. Professor McArthur wants to curve

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Suppose the scores earned on Professor McArthur’s third statistics exam are normally distributed with mean 64 and standard deviation 8. Professor McArthur wants to curve the exam scores as follows: The top 6% get an A, the next 14% get a B, the middle 60% get a C, the bottom 6% fail, and the rest earn a D. Any student who can determine these cut-offs earns 5 bonus points. Determine the cut-offs for Professor McArthur.

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If the top 6 get an A then 94 or 09400 of the students will have grades lower than an A Similarly 80 ... View full answer

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