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Windy In the last chapter, we looked at three outliers

Stats: Data and Models | 4th Edition | ISBN: 9780321986498 | Authors: Richard D. De Veaux, Paul F. Velleman, David E. Bock ISBN: 9780321986498 70

Solution for problem 20E Chapter 5

Stats: Data and Models | 4th Edition

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Stats: Data and Models | 4th Edition | ISBN: 9780321986498 | Authors: Richard D. De Veaux, Paul F. Velleman, David E. Bock

Stats: Data and Models | 4th Edition

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Problem 20E

Problem 20E

Windy In the last chapter, we looked at three outliers arising from a plot of Average Wind Speed by Month in the Hopkins Forest. Each was associated with an unusually strong storm, but which was the most remarkable for its month?

Here are the summary statistics for each of those three months:

The outliers had values of 6.73 mph, 3.93 mph, and 2.53 mph, respectively.

a) What are their z-scores?

b) Which was the most extraordinary wind event?

Step-by-Step Solution:
Step 1 of 2

Problem 20E

Windy In the last chapter, we looked at three outliers arising from a plot of Average Wind Speed by Month in the Hopkins Forest. Each was associated with an unusually strong storm, but which was the most remarkable for its month?

Here are the summary statistics for each of those three months:

The outliers had values of 6.73 mph, 3.93 mph, and 2.53 mph, respectively.

a) What are their z-scores?

b) Which was the most extraordinary wind event?

Step by step solution:

Step1:

Given values,

February:

Mean,  

Standard deviation,

Outlier,

June:

Mean,  

Standard deviation,

Outlier,

August:

Mean,  

Standard deviation,

Outlier,

We know that the equation for z-score is,

Now, let’s find the z-scores

February:

For June:

For August:

Step 2 of 2

Chapter 5, Problem 20E is Solved
Textbook: Stats: Data and Models
Edition: 4
Author: Richard D. De Veaux, Paul F. Velleman, David E. Bock
ISBN: 9780321986498

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Windy In the last chapter, we looked at three outliers