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:1:24:35 Mohammad Fawaz Iqbal: Attempt 1 Page 1: Use this scenario for the following 3 questions 1 2 3 A company that manufactures chocolates is particularly concerned about the mean weight of their chocolate bars. A random sample of 18 chocolate bars is selected, 4 5 6 and their weights in ounces are summarized in the following table 6. 029 6. 089 6. 056 6. 051 6. 110 6. 068 8 9 6. 098 6. 096 6. 011 6. 009 6. 033 6. 000 5. 995 5. 990 6. 110 5. 990 5. 955 5. 922 10 11 12 Assume that the weights of chocolate bars are normally distributed. 13 14 15 Question 9 (1 point) What are the null and alternative hypotheses the researcher should use to determine if the mean weight of the chocolate bars is less than 6.019 ounces? 16 17 BT O 19 20 21 Ho : X # 6.019 and H1 : X = 6.019 O 22 23 24 Ho : M 6.019 O Ho : X > 6.019 and H1 X C a courses.ryerson.ca/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2|?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:1:24:24 Mohammad Fawaz Iqbal: Attempt 1 Page 1: Assume that the weights of chocolate bars are normally distributed. 1 2 3 Question 9 (1 point) What are the null and alternative hypotheses the researcher should use to determine 4 5 6 if the mean weight of the chocolate bars is less than 6.019 ounces? 8 9 O Ho : X # 6.019 and H1 : X = 6.019 10 11 12 O Ho : M 6.019 13 14 15 O Ho : X > 6.019 and H1 : 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:1:24:18 Mohammad Fawaz Iqbal: Attempt 1 --U - - Page 1: 1 2 3 Question 10 (1 point) 4 5 6 The correct rejection region for ITo at the 4% level of significance is 8 9 O Reject Ho if Z STAT > -2.0537 OReject Ho if - 2.3263 2.2238 13 14 15 O Reject Ho if tsar 2.0537 or Z STAT