HLT 362 WEEK 3 DQ Answers Researchers routinely choose an alpha level of for testing their hypotheses. What are some experiments for which you might
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HLT 362 WEEK 3 DQ Answers
DQ1 Week 3 Explain when a z-test would be appropriate over a t-test.
DQ2 Week 3 Researchers routinely choose an alpha level of for testing their hypotheses. What are some experiments for which you might want a lower alpha level (e.g., )? What are some situations in which you might accept a higher level (e.g., 0.1)?
ANSWER
Think about what the p value is saying: if it is less than , then there is less than one chance in twenty that a difference as large as the one observed would come about due to chance variability if the null hypothesis of no difference were true. If it is less than , then there is less than one chance in one hundred that a difference as large as the one observed would come about due to chance alone. It indicates how much...
