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Statistics / Elementary Statistics: A Step By Step Approach 9 / Chapter 6.3 / Problem 8E

Elementary Statistics: A Step By Step Approach | 9th Edition | ISBN: 9780073534985 | Authors: Allan Bluman

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Assume that the sample is taken from a large population

Chapter 6, Problem 8E

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QUESTION:

Problem 8E

Assume that the sample is taken from a large population and the eorrection factor can be ignored.

Class Garbage GenerationA survey found that the American family generates an average of 17.2 pounds of glass garbage each year. Assume the standard deviation of the distribution is 2.5 pounds, find the probability that the mean of a sample of 55 families will be between 17 and 18 pounds.

Questions & Answers

QUESTION:

Problem 8E

Assume that the sample is taken from a large population and the eorrection factor can be ignored.

Class Garbage GenerationA survey found that the American family generates an average of 17.2 pounds of glass garbage each year. Assume the standard deviation of the distribution is 2.5 pounds, find the probability that the mean of a sample of 55 families will be between 17 and 18 pounds.

ANSWER:

Solution:

Step 1 of 2:

The average glass garbage for each year is 17.2 pounds.

The standard deviation of the distribution is 2.5 pounds.

We have to find the probability that the mean of a sample of 55 families will be between 17 and 18 pounds.

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