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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola
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Confidence Intervals. In Exercise, construct

Chapter 7, Problem 24BSC

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QUESTION:

Confidence Intervals. In Exercises 9–24, construct the confidence interval.

Interbreeding of Cultures Changes in head sizes over time suggest interbreeding with people from other regions. Use the data depicted in the accompanying dotplots and construct 95% confidence intervals to determine whether skull breadths (mm) appear to have changed from 4000 B.C. to 150 A.D. Explain your conclusion.

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QUESTION:

Confidence Intervals. In Exercises 9–24, construct the confidence interval.

Interbreeding of Cultures Changes in head sizes over time suggest interbreeding with people from other regions. Use the data depicted in the accompanying dotplots and construct 95% confidence intervals to determine whether skull breadths (mm) appear to have changed from 4000 B.C. to 150 A.D. Explain your conclusion.

ANSWER:

Solution 24BSC

The dot plot shows that the skull breadths.

Picture 2

The data is extracted from the dot plot is as follows:

4000 B.C.

150 A.D.

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