Question

SELF-REVIEW 7-2

varr

A recent national survey concluded that the typical person consumes 48 ounces of water per day. Assume daily water

consumption follows a normal probability distribution with a standard deviation of 12.8 ounces.

(a) What is the z value for a person who consumes 64 ounces of water per day? Based on this z value, how does this

person compare to the national average?

(b) What is the z value for a person who consumes 32 ounces of water per day? Based on this z value, how does this

person compare to the national average?

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