Homework SourseLengths of pregnancies in humans have a mean of 2678 days an
Lengths of pregnancies (in humans) have a mean of 267.8 days and a standard deviation of 14.8 days. A woman tracked her pregnancy and found it to be 313 days.
(a) Find the z score for 313 days.
(b) Is such length unusual?
Lengths of pregnancies (in humans) have a mean of 267.8 days and a standard deviation of 14.8 days. A woman tracked her pregnancy and found it to be 313 days.
(a) Find the z score for 313 days.
(b) Is such length unusual?
(a) Find the z score for 313 days.
(b) Is such length unusual?
Solution
Z = 313 - 267.8 / 14.8
Z=3.05
p value : 0.00114
b)
yes is very unusual because p value is very lower
