Please answer question d.

Assume that the duration of human pregnancies can be described by a normal model with mean 26? days and standard deviation 14 days. Complete parts a) through d} below. a} What percentage of pregnancies should last between 255 and 2.50 days? 33.0 as (Round to one decimal place as needed.) b} At least how man}.r days should the longest 30% of all pregnancies last? PDQ 2?4.3 )= 0.30 (Round to one decimal place as needed.) c) Suppose a certain obstetrician is currently providing prenatal care to 50 pregnant women. Let 3} represent the mean length of their pregnancies. According to the central limit theorem, what is the mean and standard deviation SDIy} ofthe normal model of the distribution ofthe sample mean, 37 The mean 26? . SD13]: 1.98 (Round to two decimal places as needed.) d} What is the probability that the mean duration of these patients' pregnancies will be less than 2m clays\"?I P(