Question

The mean incubation time for a type of fertilized egg kept at a certain temperature is

1818

days. Suppose that the incubation times are approximately normally distributed with a standard deviation of

11

dayday.

Complete parts​ (a) through​ (e) below.

​(a) Draw a normal model that describes egg incubation times of these fertilized eggs.

Choose the correct graph below.

Click here to view graph d.

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Click here to view graph c.

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Click here to view graph b.

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Click here to view graph a.

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​(b) Find and interpret the probability that a randomly selected fertilized egg hatches in less than

1616

days.The probability that a randomly selected fertilized egg hatches in less than

1616

days is

nothing.

​(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.If 100 fertilized eggs were randomly​ selected,

nothing

of them would be expected to hatch in less than

1616

days.

B.In every group of 100 fertilized​ eggs,

nothing

eggs would be expected to hatch in less than

1616

days.

C.If 100 fertilized eggs were randomly​ selected, exactly

nothing

would be expected to hatch on day

1616.

​(c) Find and interpret the probability that a randomly selected fertilized egg takes over

2020

days to hatch.The probability that a randomly selected fertilized egg takes over

2020

days to hatch is

nothing.

​(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.If 100 fertilized eggs were randomly​ selected,

nothing

of them would be expected to take more than

2020

days to hatch.

B.In every group of 100 fertilized​ eggs,

nothing

eggs would be expected to hatch in more than

2020

days.

C.If 100 fertilized eggs were randomly​ selected, exactly

nothing

would be expected to hatch on day

2020.

​(d) Find and interpret the probability that a randomly selected fertilized egg hatches between

1717

and

1818

days.The probability that a randomly selected fertilized egg hatches between

1717

and

1818

days is

nothing.

​(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.In every group of 100 fertilized​ eggs,

nothing

eggs would be expected to hatch between

1717

and

1818

days.

B.If 100 fertilized eggs were randomly​ selected, exactly

nothing

would be expected to hatch on day

1717

or on day

1818.

C.If 100 fertilized eggs were randomly​ selected,

nothing

of them would be expected to hatch between

1717

and

1818

days.​(e) Would it be unusual for an egg to hatch in less than

1515

​days? Why?The probability of an egg hatching in less than

1515

days is

nothing​,

so it

▼

would not

would

be​ unusual, since the probability is

▼

greater

less

than 0.05.

Answer 1