1. How do goodness-of-fit tests and the tests of independence differ in obtaining expected values?
2. You may recall from Chapter 9 that I bought Doritos tortilla chips and Snickers candy bars to have data for problems. For this chapter, I bought regular M&Ms.
In a 1.69-ounce package I got 9 blues, 11 oranges, 17 greens, 8 yellows, 5 browns, and 7 reds. At the time I bought the package, Mars, Inc., the manufacturer, claimed that the population breakdown is 24 percent blue, 20 percent orange, 16 percent green, 13.3 percent yellow, 13.3 percent brown, and 13.3 percent red. Use a chi square test to evaluate Mars's claim.