Use the following narrative and computer results to answer questions 26-30. One factor in low productivity is the amount of time wasted by workers. Wasted time includes time spent cleaning up mistakes, waiting for more material and equipment, and performing any other activity not related to production. In a project designed to examine this problem, an operations management consultant took a survey of 200 workers in companies that were classified as successful (on the basis of their latest annual profits) and another 200 workers from unsuccessful companies. The amount of time (in hours) wasted during a standard 40-hour workweek was recorded for each worker. The results of 3 possible approaches to a hypothesis test conducted using statistical computing software follow. Assume a significance level of 0.05 is used. Sample Summaries Successful (1) Unsuccessful (2) Sample Size 100 100 Sample Mean 5.017 7.502 Sample Std Dev 2.393 3.094 Two sample T summary hypothesis test: (without pooled variances) Hypothesis test results: Difference Sample Diff. Std. Err. DF T-Stat Critical t P-value Hi - 2 -2.485 0.39095954 186.12541 -1.6530816 0 D. H. : X, - X, 20 vs. H. :X - X,