An article in the Journal of Marketing Research (1973, Vol. 10(3), pp. 270276) presented a 2 74

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An article in the Journal of Marketing Research (1973, Vol. 10(3), pp. 270€“276) presented a 27€“4fractional factorial design to conduct marketing research:

Sales for a 6-Week Period (in $1000) A B C D E F G -1 -1 -1 1 -1 -1 Runs 1 -1 1 8.7 -1 -1 -1 1 -1 15.7 1 3 1-1 1 9.7 4 1

The factors and levels are shown in the following table.

(a) Write down the alias relationships.

(b) Estimate the main effects.

(c) Prepare a normal probability plot for the effects and interpret the results.

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Applied Statistics And Probability For Engineers

ISBN: 9781118539712

6th Edition

Authors: Douglas C. Montgomery, George C. Runger

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