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https://www.mathxl.com/Student/PlayerTest.aspx?testResultid-663332364&backs;/Student/Results.aspx%3 MAT 2342-001 Intro to Prob and Stat Fall 2017- Langford Review Test: Exam 3 Score: 0 of 1 pt 13of14 7.2.47-T The mean incubation time of fertilized eggs is 22 days uppose 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 f fertilized eggs (a) The 10th percentile for incubation times is 21 days. Round to the nearest whole number as needed.) (b) The incubation times that make up the middle 97% of fertilized eggs are 20" to 241 days. Round to the nearest whole number as needed. Use ascending order.) Question is complete. Tap on the red indicators to see incorrect answers.Explanation / Answer
Solution:- Given that mean = 22 , sd = 1
a) P(X < x) = 0.1
P(Z < (x - 22)/1) = 0.1
X - 22 = -1.28
x = 22-1.28
x = 20.72
x = 21
The 10th percentile for incubation times 21 days
b) P(X < x) = (1-0.97)/2=0.015
x - 22 = -2.17
x = 22 - 2.17
x = 19.83
x = 20
P(X < x) = 1-0.015 =0.985
x - 22 = 2.17
x = 22+2.17
x = 24.17
=> i hope u r answers currect.
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