Statistics Homework Solutions 224

Statistics Homework Solutions 224 - 2 1.0908 0.54538 22.35...

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224 CHAPTER 9 (b) All main effects are significant, as is the AB interaction. Only the BC interaction has a P value that is reasonably large. All three factors appear to be important, and they seem to interact considerably with each other. 13. (ii) The sum of the main effect of A and the BCDE interaction. Supplementary Exercises for Chapter 9 1. Source DF SS MS F P Gypsum 3 0.013092 0.0043639 0.28916 0.832 Error 8 0.12073 0.015092 Total 11 0.13383 The value of the test statistic is F 3 8 0 28916; P 0 10 ( P 0 832). There is no evidence that the pH differs with the amount of gypsum added. 3. Source DF SS MS F P Day
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Unformatted text preview: 2 1.0908 0.54538 22.35 0.000 Error 36 0.87846 0.024402 Total 38 1.9692 We conclude that the mean sugar content differs among the three days ( F 2 36 22 35, P 0). 5. (a) No. The variances are not constant across groups. In particular, there is an outlier in group 1. (b) No, for the same reasons as in part (a). (c) Source DF SS MS F P Group 4 5.2029 1.3007 8.9126 0.000 Error 35 5.1080 0.14594 Total 39 10.311 We conclude that the mean dissolve time differs among the groups ( F 4 35 8 9126, P 0)....
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This note was uploaded on 12/20/2011 for the course STA 3163 taught by Professor Mattgilg during the Fall '11 term at UNF.

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