2. In an attempt to reduce the number of man-hours lost as a result of hospital accidents, a large hospital installed new safety equipment. In a test of effectiveness of the equipment, a random sample of five departments was examined. The number of man- hours lost in the month before installation of new safety equipment and in the month after installation were recorded. The data are as follows: Department Before installation of safety equipment 17 25 42 16 19 After installation of safety equipment 234 5 15 20 30 17 | 14 Is there a significant difference between the average man-hours lost before and after the safety equipment's installation? Use 1% level of significance. На: Vhat is the leveroj sig u D. What test statistics (statistical tool) will be used? E. Determine the Critical Value/Rejection Region: F. Compute the value of the test statistic: G. State the: Statistical Decision: Statistical Conclusion: Research Conclusion:

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