Nordstrom in Mission Valley wants to determine whether there is a correlation between the amounts spent on local advertising by the store and the number of customers who shopped in the store over Christmas. The assumptions are met for the parametric test. Advertising budget in dollars (X) 1300 2000 4000 3500 Number of customers (Y) 235 315 450 436
Nordstrom in Mission Valley wants to determine whether there is a correlation between the amounts spent on local advertising by the store and the number of customers who shopped in the store over Christmas. The assumptions are met for the parametric test. Advertising budget in dollars (X) 1300 2000 4000 3500 Number of customers (Y) 235 315 450 436
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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
Transcribed Image Text:F1
2
Nordstrom in Mission Valley wants to determine whether there is a correlation between the amounts spent on local advertising by
the store and the number of customers who shopped in the store over Christmas. The assumptions are met for the parametric test.
W
S
Advertising budget in
dollars (X)
F2
#
1300
3
2000
4000
3500
6500
5000
4400
3500
4000
F3
$
Number of customers (Y)
4
R
Q
F4
F
Compute the Person correlation to measure the degree of the relationship and report your findings.
Step 4: Make a decision
Our obtained value is (write: smaller or larger)
the null hypothesis.
Based on our sample, there is a (write: weak, medium, or strong)
and the number of customers
235
%
R LO
5
315
450
436
483
575
387
243
412
F5
G
6
F6
than our critical value, so we can (write reject or fail to reject)
H
F7
positive relationship between advertising budget
8
DII
F8
9
F9
0
K ||
0
F10
F12
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