STA 3024 Exam 1 Sample Questions

111. The 2000 General Social Survey collected data on people’s happiness and how often they attendedreligious services. The sample data is shown in the following contingency table:HappinessAttend Religious Services Not happy Pretty happy Very happyLess than once per month 189 908 382One to three times per month 53 311 180At least once per week 46 335 294The standardized residuals are shown in the following table:HappinessAttend Religious Services Not happy Pretty happy Very happyLess than once per month 3.899 4.393 −7.252One to three times per month −0.788 −0.227 0.763At least once per week −3.750 −4.838 7.625Identify all the cells that show evidence that the population has fewer subjects in that cell thanit would if the variables were independent.(A) At least once per week, Very happy; Less than once per month, Pretty happy; Less thanonce per month, Not happy(B) At least once per week, Very happy; Less than once per month, Pretty happy; Less thanonce per month, Not happy; One to three times per month, Very happy(C) Less than once per month, Very happy; At least once per week, Pretty happy; At leastonce per week, Not happy(D) Less than once per month, Very happy; At least once per week, Pretty happy; At leastonce per week, Not happy; One to three times per month, Not happy; One to three timesper month, Pretty happy(E) One to three times per month, Not happpy; One to three times per month, Pretty happy;One to three times per month, Very happy112. Fisher’s exact test is mainly used when sample sizes are small to examine(A) the pattern of an association.(B) confidence intervals for the relative risk.(C) whether variables are independent.(D) type I and II errors of the chi-squared test.(E) strength of an association.