# Question

The file P10_49.xlsx contains the amount of money spent advertising a product and the number of units sold for eight months.

a. Assume that the only factor influencing monthly sales is advertising. Fit the following three curves to these data: linear (Y = a + bX), exponential (Y = abX), and multiplicative (Y = aXb). Which equation fits the data best?

b. Interpret the best-fitting equation.

c. Using the best-fitting equation, predict sales during a month in which $60,000 is spent on advertising.

a. Assume that the only factor influencing monthly sales is advertising. Fit the following three curves to these data: linear (Y = a + bX), exponential (Y = abX), and multiplicative (Y = aXb). Which equation fits the data best?

b. Interpret the best-fitting equation.

c. Using the best-fitting equation, predict sales during a month in which $60,000 is spent on advertising.

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