Suppose the lengths of human pregnancies are normally distributed with mu = 266

Question

Suppose the lengths of human pregnancies are normally distributed with mu = 266 days and sigma = 16 days. Complete parts (a) and (b) below. (a) The figure to the right represents the normal curve with mu = 266 days and sigma = 16 days. The area to the right of X = 300 is 0.0168. Provide two interpretations of this area. Provide one interpretation of the area. Select the correct choice below and fill in the answer boxes to complete your choice. (Type integers or decimals. Do not round.) A. The proportion of human pregnancies that last more than days is The proportion of human pregnancies that last less than days is B. The proportion of human pregnancies that last less than days is Provide a second interpretation of the area. Select the correct choice below and fill in the answer boxes to complete your choice. (Type integers or decimals. Do not round.) A. The probability that a randomly selected human pregnancy lasts more than days is B. The probability that a rand

Explanation / Answer

a) first interpreaation:

option A ) last more then 300 days is 0.0168

second interpretation

option A ) more then 300 days is 0.0168

b)option B) that last between 230 and 280 days is 0.7970.

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