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Mathematics, 03.07.2020 17:01 ariloveshorses

Among coffee drinkers, men drink a mean of 3.2 cups per day with a standard deviation of 0.8 cups. Assume the number of cups per day follows a normal distribution. a. What proportion drink 2 cups per day or more?

b. What proportion drink 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?

d. If a sample of 20 men is selected, what is the probability that the mean number of cups per day is greater than 3?

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Among coffee drinkers, men drink a mean of 3.2 cups per day with a standard deviation of 0.8 cups. A...

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