Discussion 1

CAT: What is hypothesis testing? Please illustrate the five steps of doing hypotheses testing with an example.

Discussion 2

CAT: Significance level of 0.1 and 0.5

CAT:

Researchers routinely choose an alpha level of 0.05 for testing their hypotheses. What are some experiments for which you might want a lower alpha level (e.g., 0.01)? What are some situations in which you might accept a higher level (e.g., 0.1)

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