i need complete answer. pls answer letter D and E no shortcuts pls

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
i need complete answer. pls answer letter D and E no shortcuts pls
In Shell Pulung Bulu, the yearly data of cars that have been serviced and the gross
receipts are shown below. (a) Based on these data, can it be concluded that there is
a relationship between the number of cars serviced and the gross receipts? (Use
graphing paper for the scatter plot. If you do not have a graphing paper, use a
bond paper but make sure that your graph is properly and accurately drawn)
No of Serviced Cars, x
361 270 306 22
35 10 8
12 21
Gross receipts (in million pesos), 3844 1962 1371 1064 334 241 188 154 125
y
(b) Find y' when x = 0.25.
(c) Find the mean of the x and y variables. Then substitute the mean of the x variable
into the corresponding regression line equations and find y'. Compare the value of y'
with y bar and generalize the results.
(d) Compute the standard error of the estimate.
(e) Find the 90% prediction interval when x = 200.
Transcribed Image Text:In Shell Pulung Bulu, the yearly data of cars that have been serviced and the gross receipts are shown below. (a) Based on these data, can it be concluded that there is a relationship between the number of cars serviced and the gross receipts? (Use graphing paper for the scatter plot. If you do not have a graphing paper, use a bond paper but make sure that your graph is properly and accurately drawn) No of Serviced Cars, x 361 270 306 22 35 10 8 12 21 Gross receipts (in million pesos), 3844 1962 1371 1064 334 241 188 154 125 y (b) Find y' when x = 0.25. (c) Find the mean of the x and y variables. Then substitute the mean of the x variable into the corresponding regression line equations and find y'. Compare the value of y' with y bar and generalize the results. (d) Compute the standard error of the estimate. (e) Find the 90% prediction interval when x = 200.
Expert Solution
steps

Step by step

Solved in 3 steps with 6 images

Blurred answer
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