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Here some of the advanced features of proc glm, as discussed in proc glm (advanced) are explored. Project 8 should be completed before starting this one.
1. The main thrust of the analysis of the tomato data is to identify the combination of soil and fertilizer which produces the greatest yield. Carry out an appropriate analysis and describe your conclusion. How dependent are your results on the chosen significance level? Turn in nice print outs of the analysis (not the data set) to back up your answers. Also turn in a copy of your program.
2. The file skin.dat contains data on skin cancer incidence. An investigator is considering 2 models for cancer incidence as a function of time: linear in time and exponential in time. Use proc glm to fit both types of models. Which model is better? Turn in nice print outs of the analysis (not the data set) to back up your answers. If you have done Project7, one or two nice graphs could be useful here too.
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Copyright © 1997 by Jerry Alan Veeh. All rights reserved.