Assume a researcher compared the performance of a group of 10 people at two different time points using the Wilcoxon signed-rank tests.
a. Using a p level of 0.05 and a two-tailed test, what is the critical value?
b. If T = 10, would the researcher reject or fail to reject the null hypothesis? Explain.
c. If T = 6, would the researcher reject or fail to reject the null hypothesis? Explain.