Question

This Question: 6 pts 7 9 of 15 (10 complete) This Test: 100 pts possible E Question Help The 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 19th percentile for incubation times. (b) Determine the incubation times that make up the middle 95% of fertilized eggs. (a) The 19th percentile for incubation times is days. (Round to the nearest whole number as needed.) to days. (b) The incubation times that make up the middle 95% of fertilized eggs are (Round to the nearest whole number as needed. Use ascending order.)

Answer 1

1= 23, 8 = 1 19th percentile. Plze z)= 0.19 PC zs -0.8779) = 0.19 X-23 = -0.8779. x = 23 -0.8779 x=122 Theigh percentile is [22 days. for incubation timer b) pizcel=0.025 Plzs -1.96) =0.025 X-23 = -logo - T X = 23-1.96 X= 21 Przez = 0.975 Plz 21-96) = 0.975 X-23 = 1.96 1

x = 25 : fertilized eggs are middle 93% of 121 to [ 25 25 days