Aspen Plastics produces plastic bottles to customer order. The quality inspector randomly selects four bottles from the bottle machine and measures the outside diameter of the bottle neck, a critical quality dimension that determines whether the bottle cap will fit properly. The dimensions (in.) from the last six samples are Suppose that the specification for the bottle neck diameter is 0.6000.050 in. and the population standard deviation is 0.015in. a. What is the process capability index? The Cpk is . (Enter your response rounded to two decimal places.) b. The process capability ratio? The Cp is . (Enter your response rounded to two decimal places.) c. If the firm is seeking four-sigma quality, is the process capable of producing the bottle? A. No, because Cpk is greater than the critical value of 1.33 . B. No, because Cpk is less than the critical value of 1.33 . C. Yes, because Cpk is greater than the critical value of 1.33 . D. Yes, because Cpk is less than the critical value of 1.33