A doctor examining the effectiveness of smoking cessation programs wanted to examine the independent and joint effect of a support group and the patch. The following data are the average number of packs smoked 2 weeks after the interventions. Each group consisted of 10 people. Answer the following questions based on this table of means.
a. What is the grand mean?
b. Calculate the mean packs smoked at each level of support group.
c. Calculate the mean packs smokes at each level of the patch.
Definitions:
Australian Dollars
The official currency of Australia, commonly used within its borders and in standard foreign exchange transactions.
U.S. Currency
The legal tender issued by the United States government, which includes banknotes and coins.
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Money or legal tender issued by a country other than the home country of the entity holding it, used for global trade and investment.
British Pound
The currency of the United Kingdom, symbolized by £ and known officially as the pound sterling.
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