The mean incubation time for a type of fertilized egg kept at a certain temperat
ID: 3040962 • Letter: T
Question
The mean incubation time for a type of fertilized egg kept at a certain temperature is 20 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 1 day.
) Find and interpret the probability that a randomly selected fertilized egg hatches in less than 19 days.
The probability that a randomly selected fertilized egg hatches in less than 19 days is?
Interpret this probability. Select the correct choice below and fill in the answer blank sections to complete your choice:
A. The average proportion of the way to hatching of all eggs fertilized in the past 19 days is_.
B. If 100 fertilized eggs were randomly selected,_ of them would be expected to hatch in less than 19 days.
C. In every group of 100 fertilized eggs,_ eggs will hatch in less than 19 days.
(c) Find and interpret the probability that a randomly selected fertilized egg takes over 21 days to hatch.
The probability that a randomly selected fertilized egg takes over 21 days to hatch is?
Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice.
A. In every group of 100 fertilized eggs,_ eggs will hatch in more than 21 days.
B. The average proportion of the way to hatching of all eggs fertilized more than 21 days ago is_.
C. If 100 fertilized eggs were randomly selected,_ of them would be expected to take more than 21 days to hatch.
(d) The probability that a randomly selected fertilized egg hatches between 18 and 20 days is?
Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice.
A. In every group of 100 fertilized eggs,_ eggs will hatch between 18 and 20 days.
B. The average proportion of the way to hatching of all eggs fertilized between 18 and 20 days is_.
C. If 100 fertilized eggs were randomly selected,_ of them would be expected to hatch between 18 and 20 days.
(e) Would it be unusual for an egg to hatch in less than 17 days? Why?
What is the probability of an egg hatching in less than 17 days?
Explanation / Answer
a)
probability that a randomly selected fertilized egg hatches in less than 19 days is
B. If 100 fertilized eggs were randomly selected, 15.87~ (16) of them would be expected to hatch in less than 19 days.
c)
probability that a randomly selected fertilized egg takes over 21 days to hatch is
C. If 100 fertilized eggs were randomly selected, 15.87 ~(16 )of them would be expected to take more than 21 days to hatch.
d)
The probability that a randomly selected fertilized egg hatches between 18 and 20 days is
C. If 100 fertilized eggs were randomly selected 47.72 ~(48) of them would be expected to hatch between 18 and 20 days.
e)
probability of an egg hatching in less than 17 days
as this probability is less than 0.05 level ; this is unusual
for normal distribution z score =(X-)/Related Questions
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