With reference to Exercise 11.39, use the theory of the preceding exercise to calculate the multiple correlation coefficient (which measures how strongly the current gain is related to the two independent variables).

Data From Exercise 11.39

Transcribed Image Text:

11.39 The following sample data were collected to determine the relationship between processing variables and the current gain of a transistor in the integrated circuit: Diffusion time Sheet resistance (hours) (-cm) Current gain XI X2 y 1.5 66 5.3 2.5 87 7.8 0.5 69 7.4 1.2 141 9.8 2.6 93 10.8 0.3 105 9.1 2.4 111 8.1 2.0 78 7.2 0.7 66 6.5 1.6 123 12.6