# Problem Set-up: Sampling Methods and the Central Limit Theorem

I need help setting this up:

The area of study is Sampling Methods and the Central Limit Theorem.

Consider the digits in the phone numbers on a randomly selected page of your local phone book a population. Make a frequency table of the final digit of 30 randomly selected phone numbers. For example, if a phone number is 555-9704, record a 4.

Draw a histogram or other graph of this population distribution. Using the uniform distribution, compute the population mean and the population standard deviation.

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#### Solution Preview

See the attachment please.

I chose 30 phone numbers randomly and got the following

852-4534 4

461-8122 2

454-7100 0

209-2021 1

454-5888 8

434-4114 4

422-7368 8

466-0149 9

454-2571 1

468-2319 9

865-1334 4

455-5469 9

876-2227 7

452-6800 ...

#### Solution Summary

This solution is provided in 199 words in an attached .doc file. It uses Excel to analyze data and find the frequency distribution, histogram, mean, and standard deviation.