BUS 308 Week 2 Discussion 2

Variation exists in virtually all parts of our lives. We often see variation in results in what we spend (utility costs each month, food costs, business supplies, etc.). Consider the measures and data you use (in either your personal or job activities). When are differences (between one time period and another, between different production lines, etc.) between average or actual results important? How can you or your department decide whether or not the observed differences over time are important? How could using a mean difference test help?

1.       When are differences between average or actual results important?

2.       How can you or your department decide whether or not the observed differences over time are important?

3.       How could using a mean difference test help?

1. As a researcher how would you test variation?

1. What would be an example of hypothesis for testing the standard deviation or variance from your professional life or even from your daily life?

1. How would you write it out as Ho and Ha?