Question

о му е Question Help Cours The mean incubation time for a type of fertilized egg kept at a certain temperature is 23 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 2 days. Complete parts (a) through (e) below. Assig (b) Find and interpret the probability that a randomly selected fertilized egg hatches in less than 21 days. Stude The probability that a randomly selected fertilized egg hatches in less than 21 days is ] (Round to four decimal places as needed.) eText Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice. (Round to the nearest integer as needed.) Study A. In every group of 100 fertilized eggs eggs would be expected to hatch in less than 21 days Video O B. f 100 fertilized eggs were randomly selected, exactly would be expected to hatch on day 21, OC. 1 100 fertilized eggs were randomly sected of them would be expected to hatch in less than 21 days. (e) Find und interpret the probability that a randomly selected fortized 099 takes over 25 days to hatch. Work The probability that a randomly selected fertilized egg takes over 25 days to hatch is (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice. (Round to the nearest integer as needed) A. 100 fertilized eggs were randomly selected, exactly would be expected to hatch on day 25. B. 1 100 fertilized eggs were randomly selected of them would be expected to take more than 25 days to hatch. Libra Stude Data Statc Acces Purch Click to select your answert) Com https://www.math.com/Student/MyDashboard productidcong&safariapoproductid 3handler urne Pearsonifoong Juml2si27.pearson-cong mixlearningproducto 31

Answer 1

b)

for normal distribution z score =(X-μ)/σx
mean μ=	23
standard deviation σ=	2

probability =P(X<21)=(Z<(21-23)/2)=P(Z<(-1)=0.1587

option C is correct :blank is 16

c)

probability =P(X>25)=P(Z>(25-23)/2)=P(Z>1)=1-P(Z<1)=1-0.84134=0.1587

option B is correct: blank is 16