Just like in chapter 9, we decided to have 3 quizzes this chapter since there are 3 significance tests, Chi-Square test for Goodness of Fit, Chi-Square Test for Association, and t-test for the slope of a linear regression.  This quiz included a four-step problem with a template.  Many students incorrectly calculated the expected values.  They multiplied the claimed percent by the observed number in each category instead of by the whole sample.​