. Another improvement effort by Valles Global Industries has produced another look at the previous weight assessment. They decided to try an EWMA chart with a lambda of .3.

a) Evaluate the process control chart.

b) Is the process producing a weight of 15?

c) What percent of the process output meets the specification of 15+/- .50 lbs.

- A majority of the errors were training

- The frequency of validation errors was minimum

- the distribution of the errors is centered around the zero error mark between 2 bins -0.00173 and 0.001907

15.24976

15.0888

15.16374

15.20418

15.28174

15.27886

15.08376

15.27241

15.16599

15.17269

15.26554

15.19429

15.23804

15.18351

15.22232

15.28818

15.26274

15.21878

15.25186

15.09295

15.29405

15.24977

15.24158

15.33562

15.26439