Question: We have already discussed summary parameters for CFC scores for the population of participants in a study by Petrocelli (2003). The mean CFC score was
We have already discussed summary parameters for CFC scores for the population of participants in a study by Petrocelli (2003). The mean CFC score was 3.51, with a standard deviation of 0.61. (Remember that even though this was a sample, we treated the sample of 664 participants as the entire population.) Imagine that you randomly selected 40 people from this population and had them watch a series of videos on financial planning after graduation. The mean CFC score after watching
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