I have a question about part 3 (number 4) of the free response on the take home exam. Can you explain question a & b further?
This is a tough question to answer; I'm not sure how to be helpful without providing the answer itself...
Take a look at the table of sample statistics and population parameters we took in our (chapter 12) notes. If you can't find it, it's at the top of page 276. This table lists each of the options for statistics/parameters, as well as the symbols that represent each.
So, your answer to these questions will be either the "mean ____," or "standard deviation of ____," or the "correlation between ____ and ____," etc. Your job is to choose the appropriate type of "number" that is being calculated/estimated in this scenario.
For the sample statistic, make sure you define what the sample is as well as what type of statistic is being used. For the population parameter, be sure to clearly define the population (and the parameter being used).
Good luck!
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