Among coffee drinkers men drink a mean of 3.2 cups per day, Ask an Expert

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Among coffee drinkers, men drink a mean of 3.2 cups per day with standard deviation of 0.8 cups. Assume the number of coffee drinks per day follows a normal distribution.

a. What proportions drink 2 cups per day or more?

b. What proportion drinks no more than 4 cups per day?

c. If the top 5% of coffee drinkers are considered heavy coffee drinkers, what is the minimum number of cups consumed by a heavy coffee drinker? (Hint: Find the 95th percentile)

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9119359

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