Maintenance Is Done to Increase the Printing Speed of an Office

Multiple Choice

Maintenance is done to increase the printing speed of an office printer.The amount of time (in seconds) for each of the six employees to print a standardized report using this printer before the maintenance is recorded in the table.The amount of time for the same employees to print these same reports after the maintenance is also recorded. ​ ​
Assuming the distributions are symmetric and continuous, conduct a Wilcoxon signed-rank test to see if it appears that the median print time decreased after the maintenance.Select the correct critical value (CV) , test statistic (TS) , and decision.(Use α = 0.10.)

A) CV = 6, TS = 18, reject H₀
B) CV = 17, TS = 14, fail to reject H₀
C) CV = 2, TS = 10, reject H₀
D) CV = 13, TS = 14, reject H₀