The accompanying data have been prepared so that data sets B through D are slightly modified versions of data set A. Complete parts​ (a) through​ (l) below.
​(d) Make a scatter diagram for data set C. Choose the correct graph below.
​(b) Figure the correlation coefficient for data set C.
​(c) Figure whether the correlation is statistically significant​ (use the 0.05 significance​ level, two-tailed) for data set C.
Determine the null and research hypotheses. Choose the correct answer below.
Determine the cutoff​ score(s) for this​ two-tailed test, using the 0.05 significance level.
Determine the test statistic. Select the correct choice below​ and, if​ necessary, fill in the answer box within your choice.
Decide whether to reject the null hypothesis.