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Windy In the last chapter, we looked at three outliers
Chapter 5, Problem 20E(choose chapter or problem)
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?
Questions & Answers
QUESTION:
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?
ANSWER:
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
(a) 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:
