Draw a scatter plot.

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
icon
Concept explainers
Topic Video
Question
8. The following data gives values for the fuel used to heat a house for a month, and the number
of degree-days (which measures the extent to which the temperature was below 20°).
Degree-Days
43 33 26 13| 4|0|0| 1| 6 | 12 | 30 | 32 52 30
6.3 10.9 8.9 | 7.5 5.3 4.0 | 1.7 | 1.2 | 1.2 | 1.2| 2.1 3.1 6.4 7.2 11.0 | 6.9
24
51
Fuel
a) Draw a scatter plot. Does there visually appear to be a significant correlation?
b) Determine the correlation coefficient? Is there a significant correlation?
c) Determine the equation of the regression line.
d) Predict the fuel use when a month has 20 degree-days.
e) Suppose the next month has 20 degree-days, and the fuel use is 5.5. Explain why this
answer is different from d).
Transcribed Image Text:8. The following data gives values for the fuel used to heat a house for a month, and the number of degree-days (which measures the extent to which the temperature was below 20°). Degree-Days 43 33 26 13| 4|0|0| 1| 6 | 12 | 30 | 32 52 30 6.3 10.9 8.9 | 7.5 5.3 4.0 | 1.7 | 1.2 | 1.2 | 1.2| 2.1 3.1 6.4 7.2 11.0 | 6.9 24 51 Fuel a) Draw a scatter plot. Does there visually appear to be a significant correlation? b) Determine the correlation coefficient? Is there a significant correlation? c) Determine the equation of the regression line. d) Predict the fuel use when a month has 20 degree-days. e) Suppose the next month has 20 degree-days, and the fuel use is 5.5. Explain why this answer is different from d).
Expert Solution
steps

Step by step

Solved in 3 steps with 1 images

Blurred answer
Knowledge Booster
Centre, Spread, and Shape of a Distribution
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
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