Post date: Oct 29, 2015 11:43:13 AM
We are studying our last topic in statistics, the chi-squared test of independence. We'll have a quiz on chi squared on Friday.
Thursday, 10/29 - we looked at contingency tables and constructed expected frequency tables. Here is the chi-squared walkthrough. Your HW is on page 2, Ex. 11E.1 #1abcd.
Friday, 10/30 - we calculated the chi squared statistic by hand manually and on GDC. Here is the chi-squared walkthrough. Your HW is on page 4, Ex. 11E.1 #3 (do all by calculator and (a) also by hand manually).
Monday, 11/2 - we used the chi squared statistic and completed the chi squared test. Here is the chi-squared walkthrough. Your HW is on page 6, Ex. 11E.2, do all (on GDC).
Wednesday, 11/4 - we did group practice problems about chi squared.
Thursday, 11/5 - we did practice problems about chi squared.
Friday, 11/6 - we have a quiz on chi squared.