A teacher of 40 university students studying the application of Excel within a business context is concerned that students are not taking a group work assignment seriously. This is deemed to be important given that the group work element is contributing to the development of personal development skills. To assess whether or not this is a problem the module tutor devises a simple experiment which judges the individual level of cooperation by each individual student within their own group. In the experiment a rating scale is employed to measure the level of cooperation: 1 = limited cooperation, 5 = moderate cooperation, and 10 = complete cooperation. The form of the testing consists of an initial observation, a lecture on working in groups, and a final observation. Given the raw data in Table 7.18 conduct a relevant test to assess whether or not we can observe that cooperation has changed significantly (assess at 5%).
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