Question: Q1) A researcher is interested in the academic performance differences between individuals using an optimistic versus a pessimistic approach to their BBA studies. If the

Q1) A researcher is interested in the academic performance differences between individuals using an optimistic versus a pessimistic approach to their BBA studies. If the researcher claims a significant difference between groups, when in fact none exists, what type of error has been made?

Q2) Compare the technique for decision making about populations using the hypothesis test method and the confidence interval method. Explain in some detail.

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