You believe that pressure (high, medium, or low) and temperature (high, medium, or low) influence the yield of a production process. Given this theory, determine the answers to the following problems:

Use the data in the Problem 1 worksheet to determine how temperature, pressure, or both influence the yield of the process.

With high pressure and low temperature, you’re 95 percent sure that process yield will be in what range?

	Rep 1	Rep 2	Rep 3	Rep 4
1	2	3	4	3
	4	5	5	12
3	4	5	4	6
	6	7	4	6
5	8	10	5	5
	10	13	5	5