5. Please use the following information to answer the question below:

Although you might suspect that dissatisfied people would be the most likely individuals to participate in political activities in an attempt to change things, research tends to show just the opposite. Flavinand Keane (2011) found a positive relationship between life satisfaction and political participation, which included activities such as attending rallies, contributing to candidates, and displaying a yard sign. Following are data similar to those obtained in the study:

Life Satisfaction Political Participation

5 4

8 7

3 2

6 9

3 5

1 3

4 6

2 4

Which of the following represents the correct regression equation for predicting political participation from life satisfaction (MUST SHOW WORK FOR THIS PROBLEM).

= .72x - 2.88

= .72x+ 2.12

= .72x- 2.12

=.72x+2.88

6. Please use the following information to answer question:

There appears to be some evidence suggesting that earlier retirement may lead to memory decline (Rohwedder& Willis, 2010). The researchers gave a memory test to men and women aged 60 to 64 years in several countries that have different retirement ages. For each country, the researchers recorded the average memory score and the percentage of individuals in the 60 to 64 range who were retired. Note that a higher percentage retired indicates a younger retirement age for that country and a higher memory score indicates better memory functioning. The following data are similar to the results from the study:

Country % Retired (X) Memory Score (Y)

Sweden 39 9.3

U.S.A. 48 10.9

England 59 10.7

Germany 70 9.1

Spain 74 6.4

Netherlands 78 9.1

Italy 81 7.2

France 87 7.9

Belgium 88 8.5

Austria 91 9.0

Which of the following represents the correct regression equation for predicting memory scores from the percentage of people aged 60 to 64 who are retired (MUST SHOW WORK FOR THIS PROBLEM).

=-0.04x-11.67

=0.04x+11.67

=-0.04x+11.67

=0.04x +11.67