A Quality Analyst wants to construct a p chart for determining whether four machines, all producing the same product, are under control with regard to a particular quality attribute. Accordingly, she spected 1,000 units of output from each machine in random samples, with the following results: Machine Number of Defectives 1,000 1,000 1,000 1,000 Question 14 2.5 pts What upper and lower control limits would give a 5% alpha risk? Hint: Using two-tailed test for SPC; 5% alpha risk mean that the area under the the two tails combined is 0.05 or 5% 0.4332 and 0.1068 0.0147 and 0.0128 0.6772 and 0 0.0286 and 0.0114 0.046 and 0.013 Question 15 2.5 pts For upper and lower control limits of 0.028 and 0, which machine(s), if any, appear(s) to be out-of- control for process proportion of defectives? Machine #3 None of the machines Machines #2 and #3 Machines #3 and 14 Machine #4