A Quality Analyst Wants to Construct a Control Chart for Determining

Multiple Choice

A quality analyst wants to construct a control chart for determining whether four machines, all producing the same product, are in control with regard to a particular quality attribute. Accordingly, she inspected 1,000 units of output from each machine in random samples, with the following results

What is the estimate of the standard deviation of the sampling distribution of sample proportions for this process?

A) .016
B) .00016
C) .04
D) .0044
E) .00002