week 4_ Discussion

Classmate replies

Rachel Wrote:

State appropriate null (Ho) and alternative (H1) hypotheses.

What is the critical value if we work with a significant level α = 0.05?

What is the decision rule?

Calculate the test statistic.

Are the bags indeed being under-filled?

Should machinery be recalibrated?

The Sample Mean is : 982.6/20=49.13