An article in the IEEE Transactions on Instrumentation and Measurement [Direct, Fast, and Accurate Measurement of V

An article in the IEEE Transactions on Instrumentation and Measurement [€œDirect, Fast, and Accurate Measurement of V_Tand K of MOS Transistor Using VT-Sift Circuit€ (1991, Vol. 40, pp. 951€“955)] described the use of a simple linear regression model to express drain current y (in milliamperes) as a function of ground-to-source voltage x (in volts). The data are as follows:

(a) Draw a scatter diagram of these data. Does a straight-line relationship seem plausible?

(b) Fit a simple linear regression model to these data.

(c) Test for significance of regression using α = 0.05. What is the P-value for this test?

(d) Find a 95% confidence interval estimate on the slope.

(e) Test the hypothesis H₀: β₀ = 0 versus H₁: β₀ ‰  0 using α = 0.05. What conclusions can you draw?

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0.734 1.50 1.1 1.6 1.7 0.886 1.2 1.66 1.04 1.3 1.81 1.8 1.97 1.19 1.4 1.9 1.35 1.5 2.12 2.0