He mean incubation time of fertilized eggs is 23 days. suppose the incubation times are approximately normally distributed with a standard deviation of 1 day. (a) determine the 17th percentile for incubation times. (b) determine the incubation times that make up the middle 97%. click the icon to view a table of areas under the normal curve. (a) the 17th percentile for incubation times is nothing days. (round to the nearest whole number as needed.) (b) the incubation times that make up the middle 97% are nothing to nothing days. (round to the nearest whole number as needed. use ascending order.)