Tuesday, February 21, 2012

Assignment 14

We will be going over Control Charts on Thursday (and doing questions 1-2).

Questions 5-7 are a great review on the difference between populatino distributions and sampling distributions of x-bar. Remember, if i were to take out ONE data point from a population graph, what would it represent? What about if I were to take it out of a sampling distribution of x-bar? What would it represent? (This should help with questions 6 and 7).

Question 8-10 are a simple review on statistics versus parameters. I think question 10 poses the most challenge. Remember your key words to know if it is talking about a parameter. (Hint: things that are "known" or about "all" are generally parameters).

Finally, questions 11-13 were discussed at the end of lab last week. This is relating the central limit theorem and how graph shapes will change (as well as the mean). Look over your class notes! (PS- These are VERY helpful questions to know for the exam! Be sure to understand them.)

-Hillary

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