Suppose that in Exercise 14-16 only a fraction of the 2 5 design could be run.

Suppose that in Exercise 14-16 only a ¼ fraction of the 2⁵design could be run. Construct the design and analyze the data that are obtained by selecting only the response for the eight runs in your design.

Exercise 14-16

The following data represent a single replicate of a 25 design that is used in an experiment to study the compressive strength of concrete. The factors are mix (A), time (B), laboratory (C), temperature (D), and drying time (E).

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284 Glassware Reagent Sample Prep Tracer Dissolution Нood Chemistry Ashing mBq Run х, -1 х, -1 х, -1 y -1 -1 -1 -1 3.31 +1 -1 +1 +1 +1 3. -1 +1 +1 -1 +1 +1 0.0373 4 +1 +1 +1 -1 -1 5 -1 -1 +1 +1 +1 -1 0.0649 +1 -1 +1 +1 -1 +1 0.133 -1 +1 -1 +1 -1 +1 0.0461 +1 +1 +1 +1 -1 -1 0.0297 -1 -1 -1 +1 -1 +1 +1 +1 -1 -1 10 +1 +1 +1 -1 +1 0.287 -1 11 +1 +1 +1 +1 -1 0.133 12 +1 +1 +1 0.0476 13 -1 +1 +1 0.133 -1 +1 -1 14 +1 -1 +1 +1 +1 -1 5.75 15 -1 +1 +1 +1 -1 -1 -1 0.0153 +1 2.47 16 +1 +1 +1 +1 +1 +1 +1 +1 = 700 = 900 = 3400 (1) 800 = 1200 ae abe = 6200 ab = 5500 = 600 = 1000 ce ac ace 1200