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For Questions 4 and 5, assume that the population distribution of usable capacity in side-by-side refrigerators
approximately normal with mean μ = 16 cubic feet and standard deviation a=1.2 cubic feet.
4. About what proportion of side-by-side refrigerators have a usable capacity between 13.6 and
19.6 cubic feet? Justify your answer.
12.4
13.6
mun
14.8
5. Find and interpret the 16th percentile of this distribution.
16
17.2
18.4
19.6