Question

URGENT PLEASE HELP

A national chain of consumer electronics store shad the business objective of determining the effectiveness of newspaper advertising. To promote sales, the chain relies heavily on local newspaper advertising to support its modest exposure in nationwide television commercials. A sample of 20 cities with similar populations and monthly sales were assigned different newspaper advertising budgets for one month.

Sales ($milions)	Newspaper Advertising ($thousands)
6.14	5
6.04	5
6.21	5
6.32	5
6.42	10
6.56	10
6.67	10
6.35	10
6.76	15
6.79	15
6.84	15
6.66	15
6.95	20
6.65	20
6.83	20
6.81	20
7.03	25
6.88	25
6.84	25
6.99	25

MULTIPLE CHOICE: CHOOSE ONE

1. What is the dependent variable for this problem

A.) Advertising B.) 20 Cities C.) Sales D.) None

2.  Suppose you run Sales vs Newspaper Advertising to build a regression model, by checking the all necessary tests or plots, for all assumptions of a regression analysis, which assumption has been violated?

A.) Independent Error B.) Linearity C.) Normality of Error D.) None E.) Equal Variances

3. Suppose run sales vs advertising and advertising square to build a regression model, what is the model significance p-value for this model?

A.) .009146 B.) 7.03E-08 C.) .00136 D.) 2.39E-08

4. From question #2 and #3 which regression model is better

A.) They are equivalent B.) Question #2 C.) Question #3 D.) None

5. Use the better model to predict sales number when newspaper advertising spending is 20.

A.)None B.) 6.8195 C.) 6.863071 D.) 7.9832

Answer 1

1. What is the dependent variable for this problem : C. Sales

2.  Suppose you run Sales vs Newspaper Advertising to build a regression model, by checking the all necessary tests or plots, for all assumptions of a regression analysis, which assumption has been violated?

D. None

3. Suppose run sales vs advertising and advertising square to build a regression model, what is the model significance p-value for this model?

A.) .009146

4. From question #2 and #3 which regression model is better

B.) Question #2

5. Use the better model to predict sales number when newspaper advertising spending is 20.

B.) 6.8195