Exhibit 20.3.A company which produces financial accounting software wants to offer better training to its customers.The training is intended to decrease the amount of time required to do complicated accounting calculations.For seven individuals,the amount of time (in minutes)to complete a complicated calculation is determined before and after completing the new training. Refer to Exhibit 20.3.Using the p-value approach and ,the appropriate conclusion is:

Question

Exhibit 20.3.A company which produces financial accounting software wants to offer better training to its customers.The training is intended to decrease the amount of time required to do complicated accounting calculations.For seven individuals,the amount of time (in minutes)to complete a complicated calculation is determined before and after completing the new training.  Refer to Exhibit 20.3.Using the p-value approach and  ,the appropriate conclusion is:

Quizplus · Accepted Answer

The p-value calculated from the Wilcoxon signed-rank test is 0.079, which is greater than the significance level of 0.05. Therefore, we do not have enough evidence to reject the null hypothesis, which states that the median difference of times before and after training is zero or not significantly different from zero. We cannot conclude that the training decreased the amount of time required to do complicated accounting calculations.