The mean incubation time of fertilized eggs is 19 days. Suppose the incubation times are approximately normally distributed with a standard deviation of 1 day.

(a) Determine the 10th percentile for incubation times.

(b) Determine the incubation times that make up the middle 97% of fertilized eggs.

(a) The 10th percentile for incubation times is

nothing

days.

(Round to the nearest whole number asneeded.)

(b) The incubation times that make up the middle 97% of fertilized eggs are

nothing

to

nothing

days.

(Round to the nearest whole number as needed. Use ascendingorder.)