Mathematics, 17.04.2020 17:58 crosales102
A household appliance manufacturer wants to analyze the relationship between total sales and the company's three primary means of advertising (television, magazines, and radio). All values were in millions of dollars, and the company spends significant amounts on all three forms of advertising. They found the following regression equation.
Sales 2506 + 6.75TV+ 3.5 Radio + 2.3 Magazine
1. One of the following interpretations is correct. Which is it? Explain what's wrong with the others.
a) If they did no advertising, their income would be $250 million.
b) Every million dollars spent on radio makes sales increase $3.5 million, all other things being equal.
c) Every million dollars spent on magazines increases TV spending $2.3 million.
d) Sales increase on average about $6.75 million for each million spent on TV, after allowing for the effects of the other kinds of advertising.
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A household appliance manufacturer wants to analyze the relationship between total sales and the com...
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