(a) A number of issues concerning measurement must be addressed in the following
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Question
(a) A number of issues concerning measurement must be addressed in the following order: (1) precision, validity, accuracy (2) accuracy, precision, validity (3) validity, accuracy, precision (4) validity, precision, accuracy (b) For a complete factorial study with three factors, each with 4 levels, the number of observations is at least (1) 12 (2) 64 (3) 81 (4) none of these (c) Two students measured the outside diameter of each of five spanner bushings once using the same caliper, resulting in 10 diameter measurements. These data can be best described as (1) qualitative, paired (2) quantitative, paired (3) qualitative, univariate (4) quantitative, univariate (d) For a 2 x 2 full factorial study with two factors A and B, each with two levels (low and high), the four experimental runs are labeled as No. 1: A low B low, No. 2: A low B high, No. 3: A high B low, and No. 4: A high B high. Based on the following random digits 41749 83141 46502 18378 63920 Which experiment should be done last? (1) No. 1 (2) No. 2 (3) No. 3 (4) No. 4 (e) Based on the following random digits 46502 18314 16392 85516 41749 the second widget selected from 30 widgets labeled 1,2, 30 is (1) (2) 14 (3) 16 (4) none of these (f) In a series of experiments to study the purity of a chemical product, the reactor temperature is set at 550 C. The variable reactor temperature is a (1) concomitant variable (2) controlled variable (3) blocking variable (4) experimental variable suersExplanation / Answer
Dear student, I am only answering the first question as per Chegg Guidelines.
In most of the numerical measuremebnt related issues, first the validity of the measure must be checked for example, weighing an object in metres is not valid at all, we should move further only if the measure is firrst valid. The value for the measure should then be checked for precision, like, the weiging scale used must give precisise results to a certain level. At last, we should check if the meausre that is obtained So the correct answer is obtain 4.
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