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A Marketing Analyst Wants to Examine the Relationship Between Sales

Question 29

Multiple Choice

A marketing analyst wants to examine the relationship between sales (in $1,000s) and advertising (in $100s) for firms in the food and beverage industry and so collects monthly data for 25 firms.He estimates the model: Sales = β0 + β1 Advertising + ε.The following table shows a portion of the regression results. A marketing analyst wants to examine the relationship between sales (in $1,000s) and advertising (in $100s) for firms in the food and beverage industry and so collects monthly data for 25 firms.He estimates the model: Sales = β<sub>0</sub> + β<sub>1</sub> Advertising + ε.The following table shows a portion of the regression results. Which of the following are the competing hypotheses used to test whether the slope coefficient differs from 3? A) H<sub>0</sub>:b<sub>1</sub> = 3;H<sub>A</sub>:b<sub>1</sub> ≠ 3 B) H<sub>0</sub>:b<sub>1</sub> = 2.88;H<sub>A</sub>:b<sub>1</sub> ≠ 2.88 C) H<sub>0</sub>:β<sub>1</sub> = 3;H<sub>A</sub>:β<sub>1</sub> ≠ 3 D) H<sub>0</sub>:β<sub>1</sub> = 2.88;H<sub>A</sub>:β<sub>1</sub> ≠ 2.88 Which of the following are the competing hypotheses used to test whether the slope coefficient differs from 3?


A) H0:b1 = 3;HA:b1 ≠ 3
B) H0:b1 = 2.88;HA:b1 ≠ 2.88
C) H0:β1 = 3;HA:β1 ≠ 3
D) H0:β1 = 2.88;HA:β1 ≠ 2.88

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