Because of the rising costs of industrial accidents, many chemical, mining, and manufacturing firms have instituted safety courses. Employees are encouraged to take these courses designed to heighten safety awareness. A company is trying to decide which one of two courses to institute. To help make a decision, eight employees take course 1 and another eight take course 2. Each employee writes a test, which is marked, out of a possible 25. The results are shown below. Do these data provide sufficient evidence at the 5% level of significance to conclude that the marks from course 2 are higher than those of course 1? Assume that the scores are not normally distributed.
The null and alternate hypotheses are: : The two population locations are the same.
: The location of population 1 (course 1) is to the left of the location of population 2.
Test statistic = ______________
Critical Value = ______________
Conclusion: ______________
There ______________ enough evidence to include conclude that the two populations are the same.
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