In a market research study for Optimal Communications, the following data were prov on the projected monthly sales (x), (in thousands) of the latest album release by the musical band with a proposed wholesale unit price of y dollars.

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
In a market research study for Optimal Communications, the following data were provided based
on the projected monthly sales (x), (in thousands) of the latest album release by the popular
musical band with a proposed wholesale unit price of y dollars.
X
y
2.2
38.00
5.4
36.00
Σx=40.7; Σy=167; Σx = 428.41;
ΣSS= 64.7;
SS=-78.78
7.0
34.50
Ey =5642.5;
11.5
30.00
14.6
28.50
Σxy = 1280.6
Transcribed Image Text:In a market research study for Optimal Communications, the following data were provided based on the projected monthly sales (x), (in thousands) of the latest album release by the popular musical band with a proposed wholesale unit price of y dollars. X y 2.2 38.00 5.4 36.00 Σx=40.7; Σy=167; Σx = 428.41; ΣSS= 64.7; SS=-78.78 7.0 34.50 Ey =5642.5; 11.5 30.00 14.6 28.50 Σxy = 1280.6
(a) Computex and y
(b) Compute the value of SS
XX
(c) Find the equation of the least squares regression line.
(d) State the coordinates of the y-intercept and the value of the gradient or slope.
(e) Calculate the correlation coefficient and interpret the result.
(f) Use the equation in c) to determine the wholesale unit price you would expect for a demand of
3250 albums.
Transcribed Image Text:(a) Computex and y (b) Compute the value of SS XX (c) Find the equation of the least squares regression line. (d) State the coordinates of the y-intercept and the value of the gradient or slope. (e) Calculate the correlation coefficient and interpret the result. (f) Use the equation in c) to determine the wholesale unit price you would expect for a demand of 3250 albums.
Expert Solution
Step 1

 Given,

Sample Monthly Sales  (x) Wholesale Price (y)
1 2.2 38.00
2 5.4 36.00
3 7.0 34.50
4 11.5 30.00
5 14.6 28.50
steps

Step by step

Solved in 2 steps with 1 images

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