The chi-square distribution is continuous, whereas the test statistic used in this section is discrete. Some statisticians use Yates’s correction for continuity in cells with an expected frequency of less than 10 or in all cells of a contingency table with two rows and two columns. With Yates’s correction, we replace
Given the contingency table in Example 4, find the value of the X2 test statistic using Yates’s correction. What effect does Yates’s correction have?
Answer to relevant QuestionsThe table below lists auto fatalities by day of the week for a recent year. Minitab results are also shown. Use a 0.01 significance level to test the claim that auto fatalities occur on the different days of the week with ...Winning-team data were collected for teams in different sports, with the results given in the accompanying table. Use a 0.05 level of significance to test the claim that home/visitor wins are independent of the sport. In a USA Today survey of 456 subjects, 269 agreed that honesty is always the best policy. Assume that we plan to use the survey results to estimate the proportion of the population who believe that honesty is always the best ...Use chest deceleration data for three different size categories (small, midsize, large). The data are from a standard crash test and they are listed in Data Set 13 in Appendix B. If we use the head injury measurements (in ...If we have a goal of using the data described in Exercise 1 to (1) determine whether size of a car has an effect on the load measurements and (2) to determine whether the location of the femur (left or right) has an effect ...
Post your question