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[See Solution] 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 coffee drinks per

Question: 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 coffee drinks per day follows a nor- mal distribution.

  1. What proportion drink 2 cups per day or more?
  2. What proportion drink no more than 4 cups per day?
  3. 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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