professor has noticed
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 17HP
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Question
A particular professor has noticed that the number of people, y, who complain about his attitude is dependent on the number of cups of coffee, x, he drinks. From eight days of tracking he compiled the following data:
People (y) | 11 | 11 | 8 | 7 | 9 | 6 | 4 | 5 |
---|---|---|---|---|---|---|---|---|
Cups of coffee (x) | 1 | 1 | 2 | 3 | 3 | 4 | 5 | 5 |
Unless otherwise stated, you can round values to two decimal places.
a) Using regression to find a linear equation for ˆy . Round to three decimal places.
ˆy =
b) Find the
r =
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