8.52. An experiment is run in a semiconductor factory to investigate the effect of six factors on transistor gain. The design selected is the shown in Table P8.15.

(a) Use a normal plot of the effects to identify the significant factors.

(b) Conduct appropriate statistical tests for the model identified in part (a).

(c) Analyze the residuals and comment on your findings.

(d) Can you find a set of operating conditions that produce gain of 1500 ) 25?

Transcribed Image Text:

The Transistor Gain Experiment Standard Run Order 1 Order A B C D E F Gain 28593 14 11 10 -234567890 10 13 +1 1 + 1 + 1 + 15 + ++1 - + + ++ | + +1 + ++ 1+1 1 +1 - + 1455 1511 +1487 +1596 + 1430 +1481 - 1458 1549 +1454 + 1517