- Writing Conclusions (for hypothesis tests)! HW (Click Me, Homie!)
- Both of these are based on types of tests we haven't learned yet--but that doesn't matter! The conclusion is always written the same way!
- Compare p-value to alpha
- Decide if you reject/fail to reject the null
- State whether there is or is not evidence of the alternative
- Copy the wording from the question (for #1) or the Ha (for #2) for your context!
- Answer key at the bottom of this post
Weekend HW = 3 hypothesis tests!
- This weekend you have 3 FULL hypothesis tests to complete for practice
- That means:
- Hypotheses: Ho and Ha
- Conditions: randomization, 10% condition, success/failure
- Math--name test, list zscore, pvalue, show zscore formula, sketch shaded model
- Conclusion (see above--tonight's HW)
- Note: you are going to get some z scores that are far away from the mean and some pvalues that have "E's" in them--that's because these are actual studies, not "cookie cutter" textbook problems
Tonight's HW = Writing Conclusions ANSWER KEY
- The pvalue of 0.036 is below the 5% level of significance so we reject Ho. There IS evidence to suggest that the average number of hours slept by American high school students has increased.
- The pvalue of 0.23 is above any common alpha level (or, above the alpha level of 0.05), so we fail to reject Ho. There IS NOT evidence that there is an association between residential status and level of participation in extracurricular activities among the students at the university.
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