1) A quality engineer is constructing a control chart to determine whether three machines, all producing the same product, are in control with regard to a particular quality attribute. Accordingly, she inspected 100 units of output from each machine in random samples, with the following results. Total Defectives Machine #1 #2 #3 What is the estimate of the process proportion of defectives? A) .01 B) 02 C) .03 D) .04 E) 05 2) Using the information in problem #1, what is the estimate of the standard deviation of the sampling distribution of sample proportions for this process? A).005 B).010 C).015 D).020 E).025 3) Using the information in problem #1, for upper and lower control limits of 052 and .028, which machine(s), if any, appear(s) to be out-of-control for process proportion of defectives? A) #1 B) #1, #2 C) #1, #3 D) #2, #3 E) All of the machines