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Analyzing Data Using SPSS

1) Using the NES 2008 data set, analyze the measures of central tendency for the following two variables: Feeling Thermometer towards Big Business and the Feeling Thermometer towards Congress. In your interpretation of these variables, include an analysis of the mean and median, the standard deviation and the distribution of the data (Hint: obtain a histogram from SPSS). Based on recent events, would you expect the same results today? Why or Why not?

Statistics

Feeling thermometer: CONGRESS

N

Valid

2082

2078

Missing

241

245

Mean

53.19

51.99

Median

50.00

50.00

Std. Deviation

21.876

20.798

The same results would not be expected today. Many changes have occurred and both the big business and the congress. That means the feeling thermometer would indicate otherwise. The current congress has lost public trust and therefore, they tend to shift towards the colder side of the feeling thermometer. In terms of big businesses, many people are currently doing trade. This idea of multinational corporations entering into contracts with government has increased the feeling thermometer, thus it may read towards a higher side.

2) To answer the question, “Are people who get contacted by political parties or other groups more likely to vote?”, construct a cross-tab again using the NES 2008 data with “Was R contacted by parties/others” as the independent variable (row variable), and “Did R Vote in 2004” as the dependent variable (column variable). Interpret the results. Are they statistically significant?

Was R contacted by parties / others? * Did R vote in 2004? Crosstabulation

Count

Did R vote in 2004?

Total

No

Yes

Was R contacted by parties / others?

No

570

700

1270

Yes

182

836

1018

Total

752

1536

2288

Chi-Square Tests

Value

df

Asymptotic Significance (2-sided)

Exact Sig. (2-sided)

Exact Sig. (1-sided)

Pearson Chi-Square

186.743a

1

.000

Continuity Correctionb

185.521

1

.000

Likelihood Ratio

194.428

1

.000

Fisher's Exact Test

.000

.000

Linear-by-Linear Association

186.662

1

.000

N of Valid Cases

2288

a. 0 cells (0.0%) have expected count less than 5. The minimum expected count is 334.59.

b. Computed only for a 2x2 table

The chi square is statistically significant since the asymptotic significance is less than α=0.05. This means that there is a relationship between getting contacted by a party and actually going to vote. In other words the two variables are dependent.