Determine proportion of patients have glucose levels, Ask an Expert

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1. Glucose levels in patients free of diabetes are supposed to follow the normal distribution with mean of 120 and a standard deviation of 16.

a) Determine proportion of patients have glucose levels exceeding 115?
b) If the patient has glucose level of 140, what percentile is this?
c) Determine the probability that mean glucose level exceeds 115 in a sample of 12 patients?

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