Use MINITAB to do the calculations and include the output that correspond for each question in the report. Type conclusions and interpretations with complete sentences.

2. Four different designs for a digital computer circuit are being studied in order to compare the amount of noise present. The following data have been obtained:

Circuit Design	Noise Observed
1	17	20	19	18	18
2	80	61	73	66	50
3	47	26	25	35	40
4	75	56	83	68	97

1. Is the amount of noise present the same for all four designs? Use a = 0.05.
   1. State the hypotheses,
   2. What is the p-value?
   3. What is the decision?
   4. Make conclusions.
2. Analyze the residuals from this experiment. Are the basic analysis of variance assumptions satisfied?
   1. State the hypotheses,
   2. What is the p-value?
   3. What is the decision?
   4. Make conclusions.
3. Based on your answer on part (b) conduct another analysis of the observed noise data with a transformation and draw the appropriate conclusions.