Search This Blog

Friday, March 6, 2020

Weekend HW--let's keep up the great work!

Weekend HW = 3 hypothesis tests!
  • This weekend you have 3 FULL hypothesis tests to complete for practice!
    • This is some great practice to make sure we have a strong procedural understanding--how to do a hypothesis test
    • Next week we'll continue to strengthen our conceptual understanding of pvalues, hypothesis tests, and look at the connections between hypothesis tests and confidence intervals
    • 3 Hypothesis Tests (Weekend HW) (Click Me, Yo!)
  • So, back to the weekend homework, "full hypothesis test" means:
    • Hypotheses: Ho and Ha
    • Conditions: randomization, 10% condition, success/failure
    • Math--name test, list zscore, pvalue, show zscore formula, sketch shaded model
      • The name of the test, zscore, and pvalue should all just be copied from the calculator screen! Then go back and add the zscore formula (remember to use your formula sheet)
    • Conclusion (see blog post below for a template)
      • pvalue greater or less than alpha? 
      • fail to reject or reject the null?
      • there is or is not evidence of the Ha?
        • Remember--we NEVER reference the Ho in our conclusion, just like a trial verdict never references the word "innocent" in the Ho
    • 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
      • Remember, a pvalue cannot be greater than 1--because it's a probability--so be on the lookout for E's
  • Weekend HW Answer Key: ALWAYS CHECK YOUR WORK!

Feeling Ambitious?
  • Here's Monday's HW!
  • Do this on separate paper!
    • Draw a line down the middle (or fold it)--create two columns
    • On one side answer question one--test the hypotheses
    • On the other side answer question 2--estimate the parameter with a confidence interval
    • This will allow us to compare/contrast these methods!
    • Now, after doing the full interval process (#2), also answer 3--use your interval to test the hypotheses from #1
    • Then, lastly, at the bottom or on the back jot down some bullets for question 4!


No comments: