Question 4 The Apparel Co. Ltd. has been using television advertisements to advertise r pew clothing line for the past 12 months. The sales manager wants to hoes the effect of these advertisements on sales for the last 12 months. You ds consider sales amount as the dependent variable and the number of advertisements as the independent variable. The sales amount (in '000) and the number of advertisements are shown below. Monthly Sales and Advertising at The Apparel Co. Ltd Month No of Advertisements Amount in sales in '000 19 60 23 78 3 30 69 24 20 26 34 4 71 83 9. 74 99 100 7. 8. 36 9. 25 64 10 31 98 11 27 81 12 27 77 Using excel, complete the following tasks: Note: Summit a copy of the regression output with your answer. a) Show the above data on a scatter plot and include the regression line. Label the graph and line completely ( b) What is the average sales across all months of advertising?( c) Identify r-squared on the regression output and interpret what it means in this scenario. the 05% interval for B 120
Question 4 The Apparel Co. Ltd. has been using television advertisements to advertise r pew clothing line for the past 12 months. The sales manager wants to hoes the effect of these advertisements on sales for the last 12 months. You ds consider sales amount as the dependent variable and the number of advertisements as the independent variable. The sales amount (in '000) and the number of advertisements are shown below. Monthly Sales and Advertising at The Apparel Co. Ltd Month No of Advertisements Amount in sales in '000 19 60 23 78 3 30 69 24 20 26 34 4 71 83 9. 74 99 100 7. 8. 36 9. 25 64 10 31 98 11 27 81 12 27 77 Using excel, complete the following tasks: Note: Summit a copy of the regression output with your answer. a) Show the above data on a scatter plot and include the regression line. Label the graph and line completely ( b) What is the average sales across all months of advertising?( c) Identify r-squared on the regression output and interpret what it means in this scenario. the 05% interval for B 120
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:Question 4
The Apparel Co. Ltd. has been using television advertisements to advertise
hoir new clothing line for the past 12 mmonths. The sales manager wants to
assess the effect of these advertisements on sales for the last 12 months. You
re to consider sales amount as the dependent variable and the number of
advertisements as the independent variable. The sales amount (in '000) and
the number of advertisements are shown below.
Monthly $ales and Advertising at The Apparel Co. Ltd
No of Advertisements
19
23
30
24
20
26
34
36
Month
Amount in sales in '000
1
60
78
69
4
71
83
9.
74
7
99
8
100
25
64
10
31
98
11
27
81
12
27
77
Using excel, complete the following tasks:
Note: Summit a copy of the regression output with your answer.
a) Show the above data on a scatter plot and include the regression line.
Label the graph and líne completely (
b) What is the average sales across all months of advertising?(
c) Identify r-squared on the regression output and interpret what it means
in this scenario.
d) Identify the 95% contidence interval for B(
e) Identify the 99% confidence interval for B (-
f) Identify the standard deviation of error at the 1% level of significance (1
g) Test at the 1% significance level whether the slope of the regression
line is positive. Identify all steps in your analysis and make a complete
and relevant decision. (
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps with 1 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman