3. Tests on nominal data For each of the following scenarios, indicate the test (or tests] that are appropriate by placing a check in the box [or boxes]. Note that more than one :est may be appropriate for a scenario. z-test Chi-Squared ztest oi p1 GoodnessofFit ChiSquared Test of Scenario of p 132 Test a Contingency Table A political science researcher wants to know if more than 50% of the city's Republicans approve of their mayor. The researcher surveys a D D D random sample of Republicans to investigate. A researcher randomly polls 500 college students to test whether there is a relationship between academic major and the news source (print, D D D television and radio, or Internet} most used by the students. A researcher randomly polls 200 college students and 300 senior citizens in order to test whether members of each group are equally likely to have D |:| D dined out at a restaurant during the past month. A political science researcher wants to know if 60% of the city's Democrats approve of their mayor. The researcher suryeys a random D D D sample of Democrats to investigate. A firm Iwants to learn if its market share, and the market shares of its . . . . . D D D three competltors, has changed after runnlng an advertlsmg campaign