QUESTION 10 10 points Save Answer Assume that a process has a conlpanyeestablished specication for variation set at o S 4.00 minutes Assume that a welldesigned= wellimplemented random sample of 150 process time measurements was collected. The mean thne was 97.3 minutes. with a standard deviation of 4.77 minutes. Using the company established signicance level of '07. is the process probably operating within its company established specication? C3 Yes No C) There is insufcient information to answer this question 0 All of the choices above C) None of the choices QUESTION 11 50 points Save Answer Continuing with the previous question based on the data collected from their sample. how condent should the company be that their process either is or is not operating within its specication for variation in the time required for the process? Approximately 99.95% confident 0 Approximately 94.56% confident 0 There is insufcient information to answer this question 0 All of the choices above 0 None of the choices QUESTION 2 10 points Save Answer How are onesample hypothesis tests different from condence intervals? IQ Onesample hypothesis tests construct intervals and partial intervals around benchmarks instead of intervals around estimators O Onesample hypothesis tests use alpha instead of the condence level. 0 Onesample hypothesis tests are not different from condence intervals. 0 Onesample hypothesis tests provide less information about random sampling error. 0 All of the choices above 0 None of the choices QUESTION 8 10 points Save Answer If the estimate is 29 and the benchmark is 28. because of the probability that the estimate suffers from some random sampling error= it would be logical to ask . or is the dierence probably due to random sampling error? E is the estimate probably greater than the benclnnark O is the estimate greater than the benchmark O is the benchmark wrong 0 is alpha too low 0 All of the choices above 0 None of the choices QUESTIONS! Assume, for the sake of this question. that the data were collected through a welldesigned. well implemented random sampling method. The marketing department of a widget manufacturer collected potential consumer preference data regarding a proposed widget upgrade. Three hundred thirtyeight of 575 respondents reported preferring the proposed new widget. The widget manufacturing company had established a threshold of 60% preferring the proposed new widget to move forward with producing the new widgets. At a .10 level of signicance, was the threshold probably met? Yes 0 No Q There is insufficient information to answer this question 0 All of the choices above 0 None of the choices 10 points Save