Sales Cars 13. Tem Rousos, president of Rousos Ford, believes there is a relationship between the number of new cars sold and the number of sales people on duty. To investigate he selects a sample of eight weeks and determines the number of new cars sold and the number of sales people on duty for that week. Week staff sold 1 53 47 48 3 7. 4 4 50 10 58 a. Plot these data in a scatter diagram. 12 62 3 45 8 11 60 56700
Sales Cars 13. Tem Rousos, president of Rousos Ford, believes there is a relationship between the number of new cars sold and the number of sales people on duty. To investigate he selects a sample of eight weeks and determines the number of new cars sold and the number of sales people on duty for that week. Week staff sold 1 53 47 48 3 7. 4 4 50 10 58 a. Plot these data in a scatter diagram. 12 62 3 45 8 11 60 56700
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:G. Determine the coefficient of determination. Comment on the strength of
the association between the two variables.
с.
d. Determine the regression equation.
d.
e. Interpret the regression equation. Where does the equation cross the Y-axis? How many
additional cars can the dealer expect to sell for each additional salesperson employed?
bat me1 w l zluods ar odel
J blo o lo d so
Transcribed Image Text:Sales
Cars
13. Tem Rousos, president of Rousos Ford, believes there is a
relationship between the number of new cars sold and the number of
sales people on duty. To investigate he selects a sample of eight
weeks and determines the number of new cars sold and the number
of sales people on duty for that week.
Week
staff
sold
1
53
2
47
3
48
4
4
50
10
58
a. Plot these data in a scatter diagram.
6.
12
62
45
8
11
60
b. Determine the coefficient of correlation.
A
B
C
D
E
Number
of Sales
F
G
Number of
Cars Sold
Staff
Y
53
5
47
5
48
7
50
4
58
10
62
12
45
3
60
11
Total
b.
Linear Regression and Correlation
272
Chapter 13
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