use spss to answer question Ese fnd Page 7 of 7 Question5 Tab The general manage

Question

use spss to answer question

Ese fnd Page 7 of 7 Question5 Tab The general manager of a ch promotional campaigns are. In these campaigns "20% off.. coupons are widely only valid for one week. To examine their effectiveness, the executive r in one restaurant during the campaign and during the week after the campar and saved in file QuestionS.sav ain of fast food chicken restaurants wants to determine how effective their distributed. These coupons are records the daily gross sales (in $000s) gn ends. The data is shown below Caps Lock Sales During Sales After Campaign Campaign Day 16.6 Sunday Monday Tuesday Wednesday Thursday Friday Saturday 10.0 9.1 8.4 10.8 13.1 20.8 8.8 8.6 8.3 10.1 12.3 18.9 Can they infer at the 5% significance level that sales increase during the campaign?

Explanation / Answer

here use paired t test for the data.

H0: promotion campaign had no effect on sales

H1: promotion campaign had significant effect on sales.

after applying that check the t calulated value and t tabulated value at 6 degree of freedom.

if t calculated is less than t tabulated at 6 degree of freedom then accept H0 that the promotion campaign had no effect on the sales else accept H1:

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