A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product, are in control with regard to a particular quality variable. Accordingly, he sampled four units of output from each machine, with the following results

What is the estimate of the mean of the sampling distribution for the sample mean?
A)16
B)19
C)20
D)21
E)23

Question

A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product, are in control with regard to a particular quality variable. Accordingly, he sampled four units of output from each machine, with the following results

What is the estimate of the mean of the sampling distribution for the sample mean?

What is the estimate of the mean of the sampling distribution for the sample mean?
A)16 
B)19 
C)20 
D)21 
E)23

Quizplus · Accepted Answer

The Answer of A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product, are in control with regard to a particular quality variable. Accordingly, he sampled four units of output from each machine, with the following results

What is the estimate of the mean of the sampling distribution for the sample mean?
A)16 
B)19 
C)20 
D)21 
E)23

A Quality Analyst Wants to Construct a Control Chart for Determining