The mean incubation time of fertilized eggs is 20 days. Suppose the incubation times are approximately normally distributed with a standard deviation of 1 day.
(a) Determine the 15th percentile for incubation times.
(b) Determine the incubation times that make up the middle 95%.
Click the icon to view a table of areas under the normal curve.
(a) The 15th percentile for incubation times is days.
(Round to the nearest whole number as needed.)
(b) The incubation times that make up the middle 95% are todays.
(Round to the nearest whole number as needed. Use ascending order.)