relative successfulness of males and females in quitting
Last updated: 6/6/2023
relative successfulness of males and females in quitting smoking A study of 400 adults who began various smoking cessation programs produced the data in the contingency table below The table shows data from the study regarding two variables the smoker s sex male or female and the length of the smoking cessation period less than two weeks between two weeks and one year or at least one year In the table less than two weeks means that the individual returned to smoking within two weeks of beginning the program between two weeks and one year means that the individual survived the first two weeks but returned to smoking within a year and at least one year means that the individual did not smoke for at least a year after beginning the program The cells of the table each contain three numbers The first number in each cell is the observed cell frequency fo the second number is the expected cell frequency f under the assumption that there is no association between sex and the length of the smoking cessation period and the third number is the following value So f Observed cell frequency Expected cell frequency JE Expected cell frequency The numbers labeled Total are totals for observed frequency Part 1 Fill in the missing values in the contingency table Round your expected frequencies to two or more decimal places and round your values to three or more decimal places Send data to Excel Sex Male Female Total Length of smoking cessation period Less than two weeks 72 0 1 29 0 10 101 Between two weeks At least one and one year year 132 a Determine the type of test statistic to use Type of test statistic Choose one 0 60 0 0 192 53 68 75 3 608 54 38 25 6 485 107 Total 257 143 400 Part 2 Answer the following to summarize the test of the hypothesis that there is no association between sex and the length of the smoking cessation period For your test use the 0 05 level of significance b Find the value of the test statistic Round to two or more decimal places 0 c Find the critical value for a test at the 0 05 level of significance Round to two or more decimal places X 0 d Can we conclude that there is an association between sex and the length of the smoking cessation period Use the 0 05 level of significance Yes O No X E E