Answer the parts of exercise 1 using age in place
Answer the parts of exercise 1 using age in place of annual salary.
a.* Draw box plots to compare these three groups. Comment on what you see.
b.* Find the average for each training level, and comment.
c.* Find the between-sample and the within-sample variabilities and their respective degrees of freedom.
d. Find the F statistic and its numbers of degrees of freedom.
e. Perform the F test at level 0.05 and report the results.
f. Report the results of the least-significant-difference test, if appropriate.
g. Summarize what you have learned about the database from this problem.
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