Concept explainers
The accompanying data are a subset of data from the report “Great Jobs, Great Lives” (Gallup-Purdue Index 2015 Report, gallup.com/reports/197144/gallup-purdue-index-report-2015.aspx, retrieved April 22, 2017). The values the approximate values read from a
- a. What is the value of r2 for this data set? Write a sentence interpreting this value in context.
- b. What is the value of se for this data set? Write a sentence interpreting this value in context.
- c. Is the linear relationship between percentage of alumni who think their education was worth the cost and university ranking positive or negative? Is it weak, moderate, or strong? Justify your answer.
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Chapter 5 Solutions
Introduction To Statistics And Data Analysis
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