Obtain a first-order discrete-dine model from the step response data in Table E7.12. Compare your results with the first-order graphical method for Step response data, fitting the gain and time constant. Plot the two simulated step responses for comparison with the observeddata.

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Time (s) y 3.000 2.456 5.274 6.493 6.404 5.243 6. 4.293 3.514 2.877 2.356 10 1.929