Date: Fri, 24 Oct 2014 15:52:21 -0500
   From: jacobson@cs.uni.edu
     To: jacobson@cs.uni.edu
Subject: Computational Statistics assignment for October 30th...

Hello 4772/5772 students,

      http://www.cs.uni.edu/~jacobson/4772/week9/

      Treatments3.xlsx, and now also provided is Treatments3.csv

      Here is what the first 3 rows of the Excel (or the CSV) file looks like:

Treatment       m22   y
---------      ----  -----
1              4.4    8.27
1              2.44   4.83

      There are 31 rows in the .xlsx and in the .csv file.

      There are 3 different treatments coded numeric as 1, 2, and 3.

      Ten subjects got treatment 1, ten got treatment 2, and ten got 
      treatment 3.

      It is desired to have a grouped scatterplot with 3 different regression
            lines (lm or Linear Model).

      What is the predictor or the independent variable?   m22 

      What is the dependent variable, 
                                       or the y, the predicted?    y

      What are the groups for the grouped scatterplot?   

                       treatment is 1 or 2 or 3, depending on
                       which category of treatment the subject received.

       http://www.cs.uni.edu/~jacobson/4772/week9/

       You will also need to do an ANOVA to compare the means
for m22 for the 3 different groups.  Do a post hoc test, if it 
is needed. so as to see where the significant differences are:

Group 1 different from group 2, or group 1 different from group 3,
or group 2 different from group 3.

       http://www.cs.uni.edu/~jacobson/4772/

What is the null hypothesis?  What is the research or alternative hypothesis?

       More later.

       Mark