Solution: A recent national survey reported that the average person consumes 48 ounces of water per day. Assume the standard deviation of water consumption


Question: A recent national survey reported that the average person consumes 48 ounces of water per day. Assume the standard deviation of water consumption is 12.8 ounces per day and the consumption rate follows a normal distribution.

  1. (For this question the typical person falls within the middle sixty percent of the normal distribution.) What are the minimum and the maximum number of ounces that define this portion of the population?
  2. Seventy percent of the population will consume at least how many ounces per day?

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