Question
The length of human pregnancies from conception to birth approximates a normal distribution with a mean of 266 days and a standard deviation of 16
The length of human pregnancies from conception to birth approximates a normal distribution with a mean of 266 days and a standard deviation of 16 days. (30 pts)
a-What proportion of all pregnancies will last between 240 and 270 days (roughly between 8 and 9 months)?
b- What length of time marks the shortest 70% of all pregnancies?
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Auditing A Business Risk Approach
Authors: Karla Johnstone, Audrey Gramling, Larry Rittenberg
8th edition
978-0538476232
