A library checks out an average of 382 books per day with a standard deviation of 76 books. The number of books checked out follows an unknown distribution. Consider a random sample of 103 days of operation. Let the average number of books checked out per day over a selection of 103 days.
A library checks out an average of 382 books per day with a standard deviation of 76 books. The number of books checked out follows an unknown distribution. Consider a random sample of 103 days of operation. Let the average number of books checked out per day over a selection of 103 days.
MATLAB: An Introduction with Applications
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![A library checks out an average of 382 books per day with a standard deviation of 76 books. The number of
books checked out follows an unknown distribution. Consider a random sample of 103 days of operation.
Let
X = the average number of books checked out per day over a selection of 103 days.
||
Question Help: O Message instructor](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5432aa6b-1f4d-4482-9cc7-36915b64f171%2F798369d9-6187-488c-969c-247e8e8d124c%2Fl9wwhvq_processed.png&w=3840&q=75)
Transcribed Image Text:A library checks out an average of 382 books per day with a standard deviation of 76 books. The number of
books checked out follows an unknown distribution. Consider a random sample of 103 days of operation.
Let
X = the average number of books checked out per day over a selection of 103 days.
||
Question Help: O Message instructor
![The lengths of pregnancies in a small rural village are normally distributed with a mean of 262 days and a
standard deviation of 12 days.
In what range would you expect to find the middle 68% of most pregnancies?
Between
and
you were to draw samples of size 58 from this population, in what range would you expect to find the
middle 68% of most averages for the lengths of pregnancies in the sample?
If
Between
and
Enter your answers as numbers. Your answers should be accurate to 1 decimal places.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5432aa6b-1f4d-4482-9cc7-36915b64f171%2F798369d9-6187-488c-969c-247e8e8d124c%2F4ujp58i_processed.png&w=3840&q=75)
Transcribed Image Text:The lengths of pregnancies in a small rural village are normally distributed with a mean of 262 days and a
standard deviation of 12 days.
In what range would you expect to find the middle 68% of most pregnancies?
Between
and
you were to draw samples of size 58 from this population, in what range would you expect to find the
middle 68% of most averages for the lengths of pregnancies in the sample?
If
Between
and
Enter your answers as numbers. Your answers should be accurate to 1 decimal places.
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