Introduction To Statistics And Data Analysis
6th Edition
ISBN: 9781337793612
Author: PECK, Roxy.
Publisher: Cengage Learning,
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Textbook Question
Chapter 5.3, Problem 49E
The article “California State Parks Closure List Due Soon” (The Sacramento Bee, August 30, 2009) gave the following data on y = Number of employees in fiscal year 2007-2008 and x = Total size of parks (in acres) for the 20 state park districts in California:
- a. Construct a
scatterplot of the data. - b. Find the equation of the least-squares line.
- c. Do you think the least-squares line gives accurate predictions? Explain.
- d. Delete the observation with the largest x value from the data set and recalculate the equation of the least-squares line. Does this observation greatly affect the equation of the line?
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Chapter 5 Solutions
Introduction To Statistics And Data Analysis
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