Question: A textile mill wishes to establish a control procedure on
A textile mill wishes to establish a control procedure on flaws in towels it manufactures. Using an inspection unit of 50 units, past inspection data show that 100 previous units had 850 total flaws. What type of control chart is appropriate? Design the control chart such that it has two-sided probability control limits of a = 0.06, approximately. Give the center line and control limits.
Relevant QuestionsThe manufacturer wishes to set up a control chart at the final inspection station for a gas water heater. Defects in workmanship and visual quality features are checked in this inspection. For the past 22 working days, 176 ...A control chart for nonconformities is to be established in conjunction with final inspection of a radio. The inspection unit is to be a group of ten radios. The average number of nonconformities per radio had, in the past, ...Reconsider the insurance claim data in Table 7E.1. Set up an np control chart for this data and plot the data from Table 7E.1 on this chart. Compare this to the fraction nonconforming control chart in Exercise 7.3. In Table ...Consider the package weight data in Exercise 8.13. Suppose there is a lower specification at 0.985 kg. Calculate an appropriate process capability ratio for this material. What percentage of the packages produced by this ...A normally distributed quality characteristic has specification limits at LSL = 50 and USL = 60. A random sample of size 35 results in x 55.5 and s 0.9. (a) Calculate a point estimate of Cpk. (b) Find a 95% ...
Post your question