An article in Talanta (2005, Vol. 65, pp. 895899) presented a 2 3 factorial design to find

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An article in Talanta (2005, Vol. 65, pp. 895€“899) presented a 2³factorial design to find lead level by using flame atomic absorption spectrometry (FAAS). The data are in the following table.

The factors and levels are in the following table.

(a) Construct a normal probability plot of the effect estimates. Which effects appear to be large?

(b) Conduct an analysis of variance to confirm your findings for part (a).

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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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Question Posted: Jun 29, 2018 03:42 AM

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An article in Talanta (2005, Vol. 65, pp. 895899) presented a 2 3 factorial design to find

Question:

Lead Recovery (%) Factors Run ST pH RC R1 39.8 51.3 57.9 R2 42.1 48 58.1 85.9 84.2 78.9 78.9 84.2 94.4 84.2 90.9 94.7 105.3 I|I + + + + II + +I I + + EI +I +I + + -234 5678

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a The plot below shows standardized effects A standardized effect equals the effect divided by its s...View the full answer

Applied Statistics And Probability For Engineers

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