Evaluate the relative strength of the correlation. – How strong is this correlation? – Is this a positive or negative correlation? – What does this correlation mean? • Does this imply that individuals with high Intelligence Quotients (IQ) have high Grade
A group of researchers at a business consulting firm conducted a study to determine which training initiative is more effective at preparing new hires for their positions in a company. They tested two different types of training, a lecture series on the position the individuals will be working in, and a task-focused training where the individuals were places in the actual job setting where they were taught tasks they will commonly perform. To test the effectiveness, 100 participants were randomly selected with 50 people in each group. Of the 50 people who were in the lecture group, 70 successfully completed the training. Of the people who were in the task-focused group, 58 successfully completed the training. The folks in each group that were not successful in their respective training were not hired. The level of significance was set at .05. The proportion of people who completed the first training = .70, and the proportion of the people in the task-focused group = .58. The statistical test used was a test to evaluate whether one group was significantly different from the other. The calculated p value = .0008.
Describe what you think the research question for
this experiment might have been.
– What were the null and alternative hypotheses?
– Were the results of this test statistically
significant? If so, why?
• Would the researchers reject or fail to reject the
null hypothesis based on the limited details
• Do the results provide sufficient evidence to support
the alternative hypothesis?
• Was the sample appropriate for this study? Explain
• What are some possible limitations to this study?
• Discuss how you would conduct a follow-up study to
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