Month Jan Feb Mar Apr May Jun Jul Aug Sept Advertising Expense 10 Sales Revenue Find the coefficient of correlation. Determine at the 0.10 significance level whether the correlation in the population is greater than zero. [See Example in Page 290 8. 12 11 13 15 14 13 16 190 215 190 210 235 208 170 175 250

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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SJS Company has been selling to retail customers in the Metro Manila area. They advertise extensively on radio, print ads, and in the internet. The owner would like to review the relationship between the amount spent on advertising expense (in thousands) and sales (in thousands). Below is information on advertising expense and sales for the last 9 months.
Month
Advertising Expense 10
Sales Revenue
Find the coefficient of correlation. Determine at the 0.10 significance level whether the correlation in
the population is greater than zero. [See Example in Page 290]
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sept
12
11
13
15
14
13
16
190
215
190
210
235
208
170
175
250
Transcribed Image Text:Month Advertising Expense 10 Sales Revenue Find the coefficient of correlation. Determine at the 0.10 significance level whether the correlation in the population is greater than zero. [See Example in Page 290] Jan Feb Mar Apr May Jun Jul Aug Sept 12 11 13 15 14 13 16 190 215 190 210 235 208 170 175 250
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