I need help with 11, 17, and 21. Thank you Three ice-cream packing machines at t

Question

I need help with 11, 17, and 21. Thank you

Three ice-cream packing machines at the Creamy Treat Company are being evaluated for their capability. The following data are recorded: If specifications are set between 15.85 and 16.4 ounces, determine which of the machines are capable of producing within specifications. A computer manufacturer purchases microchips from a world-class supplier. The buyer has a lot tolerance proportion defective of 12 parts in 6,000, with a consumer's risk of 14 percent. If the computer manufacturer decides to sample 2,500 of the microchips received in each shipment, what acceptance number, c, would it want? (Round answers to 4 decimal places, e.g. 15.2500.) The Crunchy Potato Chip Company packages potato chips in a process designed for 14.0 ounces of chips with an upper specification limit of 14.5 ounces and a lower specification limit of 13.5 ounces. The packaging process results in bags with an average net weight of 13.9 ounces and a standard deviation of 0.15 ounces. The company wants to determine if the process is capable of meeting design specifications. (Round answers to 3 decimal places, e.g. 15.250.)

Explanation / Answer

Packing Machine std dev A 0.30 B 0.15 C 0.30 UCL 16.40 LCL 15.85 Cp = (UCL - LCL)/(6*STD DEV) Cp (A) 0.3056 Machine A is not capacble ( calculated using the above formula) Cp (B) 0.6111 Machine B is not capacble Cp (C) 0.3056 Machine C is not capacble (Note: the higher the Cp value the better, but Cp>1 for the proces sto be capable)

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