1. Select the best statistical analysis technique for the following. Be very precise about your statistical choice.  Please specify exactly which statistical analysis technique would be used, e.g. One-Way ANOVA and the level of measurement for the variable.

You wish to test the null hypothesis that age (defined as young = 20 to 30 years old, and middle age = 31 to 50) makes no difference in purchasing one of four makes of cars (DV = Honda, Toyota, Lexus, Chevy).   Which statistical test would you conduct and why?

2. In comparing the effectiveness of three methods of training (IV) in how to handle interviews with the press, you plan to administer a test (DV measured on an interval scale) to the participants in three different seminars with each seminar using a different training method.

State the research hypothesis being tested.

Which sampling method would yield the best representative sample? Write a paragraph with the rationale for the selecting the sampling design.

Name the inferential statistical test that would be used for the method of training and why?