An experiment was conducted to determine the effect of pressure and temperature on the performance of a chemical. Two levels of pressure (in pounds per square inch, psi) and three levels of temperature were used:

Pressure (psi)	Temperature (F)
50	100
80	200
	300

A run of the experiment at each temperature-pressure combination resulted in the data shown in the following table:

Performance	Pressure (psi)	Temperature (F)
21	50	100
23	50	200
26	50	300
22	80	100
23	80	200
28	80	300

1. Present hypothesis.
2. Find the regression equation.
3. What is the value of R2? Implying?
4. Between which is there a statistically significant relationship?
5. What information does the ANOVA table give us?

Using Minitab