Perform a two-way ANOVA to jointly assess the effects of preparation and follow-up time on plasma-carotene levels.

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Perform a two-way ANOVA to jointly assess the effects of preparation and follow-up time on plasma-carotene levels. Is there any evidence that the effect of preparation differs by time period?

Table 12.35: Format of BETACAR.DAT

Code Variable Column Preparation Subject number First baseline level Second baseline level 1 = SOL; 2= ROCHE; 3 = BASF-3

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Fundamentals Of Biostatistics

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Authors: Bernard Rosner

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Perform a two-way ANOVA to jointly assess the effects of preparation and follow-up time on plasma-carotene levels.

Question:

Code Variable Column Preparation Subject number First baseline level Second baseline level 1 = SOL; 2= ROCHE; 3 = BASF-30; 4 = BASF-60 3-4 6-8 10-12 Week 6 level Week 8 level Week 10 level Week 12 level 14-16 18-20 22-24 26-28

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For this question we use STATA to perform twoway ANOVA where our outcome variable is change from bas...View the full answer

Fundamentals Of Biostatistics

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