Posted by **yanti** on Sunday, December 18, 2011 at 5:12pm.

The variance in a production process is an important measure of the quality of the process. A large variance often signals an opportunity for improvement in the process by finding ways to reduce the process variance. Conduct a statistical test to determine whether there is a significant difference between the variances in the bag weights for the two machines. Use a .05 level of significance. What is your conclusion? Which machine, if either, provides the greater opportunity for quality improvements?

Machine 1: 2.95 3.45 3.50 3.75 3.48 3.26 3.33 3.20 3.16 3.20 3.22 3.38 3.90 3.36 3.25 3.28 3.20 3.22 2.98 3.45 3.70 3.34 3.18 3.35 3.12

Machine 2: 3.22 3.30 3.34 3.28 3.29 3.25 3.30 3.27 3.38 3.34 3.35 3.19 3.35 3.05 3.36 3.28 3.30 3.28 3.30 3.20 3.16 3.33

## Answer This Question

## Related Questions

- statistics - I have created my chart but am really confused on creating a ...
- Quality management/performance improvement - as a health information management ...
- Statistics - To do inferential procedures comparing two proportions, we need ...
- Statistics - Which of these statements is not true about the variance in a ...
- accounting - please explain how a large variance from budget would you consider...
- statistical quality control - A new process is started, and the sum of the ...
- statistical quality control - A new process is started, and the sum of the ...
- math- Variance - What does it mean when it says Variance of Stride Length with ...
- math - An organizational psychologist measures levels of job satisfaction in a ...
- ET3034TUx Solar Energy - Which of the following processes is used in order to ...

More Related Questions