10 points QUESTION 12 Save Answer Assume a production process which is in control and an associated quality variable which follows the normal distribution with p=2700 and o=200 Select from the following list all the statements which are correct Select only those statements you know to be correct because negative marking is applied within this question (although it is not possible to get a negative mark for the question overall) Da. The range representing the natural tolerances is not within the specification limits b. Two different indices are necessary to determine whether the quality of the process output is satisfactory O c The percentage meeting specifications is a good measure of the process' capability d. The 68.2% of this vanable's observed values are expected to fall between 2500 and 2900 De.For Cp =1, the process output will just fit within the specifications f. The natural tolerances range is between 2100 and 3300 g. For Cp>>1 the process output will always be of satisfactory quality Oh. This process achieves 6sigma level quality OL This process achieves 3sigma level quality