R Quizzes - QMS210 011 - Applie X Course Hero X + > C a courses.ryerson.ca/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d21?ou=682825&isprv=&drc=0&qi=332796&cfql=0&dnb=0&fromQB=0 F22 - QMS210 - Test 2 X Time Limit: 1:30:00 Time Left:1:27:54 Mohammad Fawaz Iqbal: Attempt 1 Page 1: Use this scenario for the following 3 questions 1 2 3 The results of a study conducted as a part of a yield-improvement effort at a semiconductor manufacturing plant provided defect data for a sample of 400 wafers. 4 5 6 The following contingency table Quality of Wafers 8 9 Particles Good Bad Totals Yes 14 36 50 270 80 350 10 11 12 Totals 284 116 400 presents a summary of the responses to two questions: "Was a particle found on the 13 14 15 die that produced the wafer?" and "Is the wafer good or bad?" Question 4 (1 point) 16 17 BT What test would you use if you wanted to test if there is evidence of a significant difference between the proportion of good and bad wafers that have particles? 19 20 21 OZ - test for the difference between two proportions 22 23 24 Ox2-test of independence O Either X2- test or Z - test for the difference between two proportionsR Quizzes - QMS210 011 - Applie X Course Hero X + > C a courses.ryerson.ca/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d21?ou=682825&isprv=&drc=0&qi=332796&cfql=0&dnb=0&fromQB=0 F22 - QMS210 - Test 2 X Time Limit: 1:30:00 Time Left:1:27:46 Mohammad Fawaz Iqbal: Attempt 1 Page 1: Question 4 (1 point) 1 2 3 What test would you use if you wanted to test if there is evidence of a significant difference between the proportion of good and bad wafers that have particles? 4 5 6 OZ - test for the difference between two proportions 8 9 Ox"-test of independence O Either X2 - test or Z - test for the difference between two proportions 10 11 12 OZ - test for the difference between two means 13 14 15 OF - test for the difference between two variances Question 5 (1 point) 16 17 BT If you want to test if there is evidence of a significant difference between the proportion of good and bad wafers that have particles at 0.05 level of significance 19 20 21 what would be the p-value and the statistical conclusion? Op-value = 0 virtually, Reject Ho 22 23 24 Op-value = 0.001, Do not reject HoR Quizzes - QMS210 011 - Applie X Course Hero X + > C a courses.ryerson.ca/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d21?ou=682825&isprv=&drc=0&qi=332796&cfql=0&dnb=0&fromQB=0 F22 - QMS210 - Test 2 X Time Limit: 1:30:00 Time Left:1:27:41 Mohammad Fawaz Iqbal: Attempt 1 Page 1: Question 5 (1 point) 1 2 3 If you want to test if there is evidence of a significant difference between the proportion of good and bad wafers that have particles at 0.05 level of significance 4 5 6 what would be the p-value and the statistical conclusion? Op-value = 0 virtually, Reject Ho 8 9 Op-value = 0.001, Do not reject Ho 10 11 12 Op-value = 0 virtually, Do not reject Ho 13 14 15 Op-value = 0.016, Reject Ho 16 17 18 Op-value = 0.033, Reject Ho 19 20 21 Question 6 (1 point) The Left end point of the 99% confidence interval estimate of the difference 22 23 24 between the population proportion of good and bad wafers that contain particles is (round your answer to four decimal places)