Chris collects personal data on coffee consumption x (in cups) and the following night's sleep y (in hours). Fitting a linear regression to the data, Chris learns that the slope is -0.43. One evening Chris uses his regression and predicts 6.47 hours of sleep. Then Chris remembers that his "coffee count" was off in making this estimate; Chris drank in an atypical additional 2 cups of coffee over lunch break. What should Chris' predicted sleep be (in hours)? Answer to the nearest 0.01 hours. (There is insufficient information here to produce the equation of the least squares line. You may need to look back in the course notes to find out how the slope is interpreted, and how that can be used to solve this problem.)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
Chris collects personal data on coffee consumption x (in cups) and the following night's sleep y (in
hours). Fitting a linear regression to the data, Chris learns that the slope is -0.43. One evening Chris
uses his regression and predicts 6.47 hours of sleep. Then Chris remembers that his "coffee count"
was off in making this estimate; Chris drank in an atypical additional 2 cups of coffee over lunch
break. What should Chris' predicted sleep be (in hours)? Answer to the nearest 0.01 hours.
(There is insufficient information here to produce the equation of the least squares line. You may
need to look back in the course notes to find out how the slope is interpreted, and how that can be
used to solve this problem.)
Transcribed Image Text:Chris collects personal data on coffee consumption x (in cups) and the following night's sleep y (in hours). Fitting a linear regression to the data, Chris learns that the slope is -0.43. One evening Chris uses his regression and predicts 6.47 hours of sleep. Then Chris remembers that his "coffee count" was off in making this estimate; Chris drank in an atypical additional 2 cups of coffee over lunch break. What should Chris' predicted sleep be (in hours)? Answer to the nearest 0.01 hours. (There is insufficient information here to produce the equation of the least squares line. You may need to look back in the course notes to find out how the slope is interpreted, and how that can be used to solve this problem.)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman