A perfume company found out that their daily number of sales is 8 units. They hired a new agent and instructeed him to tally the daily sales for 20 days. Show that the average daily sales has increased using Critical Value Method. Use 0.05 significance level. 9 9 9 8 9 9 11 12 12 16 10 12 8 11 17 18 15 14 17 14

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A perfume company found out that their daily number of sales is 8 units. They hired a new agent and instructeed him to tally the daily sales for 20 days. Show that the average daily sales has increased using Critical Value Method. Use 0.05 significance level.

9 9 9 8 9
9 11 12 12 16
10 12 8 11 17
18 15 14 17 14
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