5. The following have been prepared so that data sets B through D are slightly modified versions of data set A. For each data set,

(a) make a scatter diagram,

(b) figure the correlation coefficient, and

(c) figure whether the correlation is statistically significant (use the .05 significance level, two-tailed).

Data Set A Data Set B Data Set C Data Set D X Y X Y X Y X Y 1 1 1 1 1 5 1 1 2 2 2 2 2 2 2 4 3 3 3 3 3 3 3 3 4 4 4 5 4 4 4 2 5 5 5 4 5 1 5 5