Question 1:

1. Consider a test of the H ₀ :  _T =  _B vs. H _A :  _T  _B . Use Minitab or R to find the power of the =.05 test if n _T = 30 and  _T is larger than  _B by 5 points. Assume that the true standard deviation of the differences  _D = 30. Do not use the Minitab Power and Sample size menu item – use the cumulative distribution function command, or use R’s pt() function.
2. Construct a well-labeled plot featuring overlaid power curves (power vs.  _D ) for n _T =20, 40, 60 for the =0.05 test of part (a), assuming  _D =30. Label this as though it will be featured in the report to the engineers.

Price: $7.67

Solution: The downloadable solution consists of 5 pages, 267 words and 4 charts.
Deliverable: Word Document