A Process Instrument Reading Z Volts Is Thought To Be

A process instrument reading, Z (volts), is thought to be related to a process stream flow rate V(L/s) and pressure P(kPa) by the following expression:

Process data have been obtained in two sets of runs-one with V held constant, the other with P held constant. The data are as follows:

(a) Suppose you had only performed runs 2, 3 and 5. Calculate a, b, and c algebraically from the data for these three runs.

(b) Now use a graphical method and all the data to calculate a, b, and c. Comment on why your would have more confidence in this result than in that of part(a).

A process instrument reading, Z (volts), is thought to be

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