Watkins Powers
06/17/2023 · Junior High School
16 The pregnancy length in days for a population of new mothers can be approximated by a normal distribution with a mean of 267 days and a standard deviation of 8 days. (a) What is the minimum pregnancy length that can be in the top \( 11 \% \) of pregnancy lengths? (b) What is the maximum pregnancy length that can be in the bottor \( 7 \% \) of pregnancy lengths? (a) The minimum pregnancy length is \( \square \) days. (Round to one decimal place as needed.)
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(a) The minimum pregnancy length is 276.8 days.
(b) The maximum pregnancy length is 255.2 days.
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