Solve the below problem:
Q: Given the following process control data for a quality attribute (three samples of size 400 each):
Sample Defectives
#1 36
#2 32
#3 52
If the process proportion of defectives is unknown, using .10 alpha risk control limits, do any of the sample proportions indicate an out-of-control process proportion of defectives? Calculate each and provide an answer. Show your work.