Consider the following to answer the question(s) below:
What affects 4K Ultra HD Smart TV sales? TVs are sold through a variety of outlets. Sales figures (number of units) for the Samsung 7 Series were obtained for last quarter from a sample of 30 different stores. Also collected were data on the selling price and amount spent on advertising the Samsung 7 Series (as a percentage of total advertising expenditure in the previous quarter) at each store. Below are the results.
-Which of the following statements is true at α = .05?
A) The multiple regression model is not significant overall.
B) Price is not a significant independent variable in explaining Samsung 7 Series sales.
C) There is no evidence that Advertising is a significant independent variable in explaining Samsung 7 Series sales.
D) All we can say is that the multiple regression model is significant overall and only Price is a significant independent variable in explaining Samsung 7 Series sales.
E) We can say that the multiple regression model is significant overall. Also, both variables (Price and Advertising) are significant in explaining Samsung 7 Series sales.

Question

Consider the following to answer the question(s) below:
What affects 4K Ultra HD Smart TV sales? TVs are sold through a variety of outlets. Sales figures (number of units) for the Samsung 7 Series were obtained for last quarter from a sample of 30 different stores. Also collected were data on the selling price and amount spent on advertising the Samsung 7 Series (as a percentage of total advertising expenditure in the previous quarter) at each store. Below are the results. 
-Which of the following statements is true at α = .05?
A) The multiple regression model is not significant overall. 
B) Price is not a significant independent variable in explaining Samsung 7 Series sales. 
C) There is no evidence that Advertising is a significant independent variable in explaining Samsung 7 Series sales. 
D) All we can say is that the multiple regression model is significant overall and only Price is a significant independent variable in explaining Samsung 7 Series sales. 
E) We can say that the multiple regression model is significant overall. Also, both variables (Price and Advertising) are significant in explaining Samsung 7 Series sales.

Quizplus · Accepted Answer

The question asks for the statement that is true at α = .05, which means we are conducting a hypothesis test with a significance level of 0.05. Looking at the regression output, we can see that the p-value for the overall model is less than the significance level (p-value = 0.000), so we can say that the multiple regression model is significant overall. Additionally, both the Price variable and the Advertising variable have p-values less than the significance level, indicating that they are both significant in explaining Samsung 7 Series sales. Therefore, the correct answer is E.

Consider the Following to Answer the Question(s) Below