STATISTICS F/BUSINESS+ECONOMICS-TEXT
13th Edition
ISBN: 9781305881884
Author: Anderson
Publisher: CENGAGE L
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Chapter 3.2, Problem 29E
The Los Angeles times regularly reports the air quality index for various areas of Southern California. A sample of air quality index values for Pomona provided the following data: 28, 42, 58, 48, 45, 55, 60, 49, and 50.
- a. Compute the
range andinterquartile range . - b. Compute the sample variance and sample standard deviation.
- c. A sample of air quality index readings for Anaheim provided a sample
mean of 48.5, a sample variance of 136, and a sample standard deviation of 11.66. What comparisons can you make between the air quality in Pomona and that in Anaheim on the basis of thesedescriptive statistics ?
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Chapter 3 Solutions
STATISTICS F/BUSINESS+ECONOMICS-TEXT
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