Answer the following statement(s) true (T) or false (F)
1. Pearson’s r is not a symmetrical measure of association.
2. When plotting data on a scatter plot, homoscedastic data look like a slanted tornado or funnel.
3. The Gauss-Markov theorem is a set of assumptions that data should meet for linear regression.
4. If your data does not meet the assumption of interval level variables, you can use a contingency table to analyze the relationship between a categorical dependent variable and an interval independent variable if you collapse it into categories.
5. If the squared value of x has a positive coefficient, the scatter plot will look like a mountain.
1. false
2. false
3. true
4. true
5. false
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Describe three scientific methods commonly used by public opinion researchers to contact survey respondents. Compare the strengths and weaknesses of each
What will be an ideal response?
To appeal to the majority of voters, a political party will have to ________________
a. clearly articulate a policy platform. b. move to the ideological middle. c. launch an extensive media campaign. d. raise more money than the other party or candidate.