What does a 5% significance level really mean?
From MathTalk http://hoa.aavso.org/mathtalk.htm RESOURCES FOR CHAPTER 10 BELOW THIS POINT ON THIS PAGE ARE NOT YET CURRENT FOR 2009
THESE MATERIALS MAY BE CHANGED FOR 2009 = DO not download them YET!!!
RESOURCES FOR CHAPTER 10 BELOW THIS POINT ON THIS PAGE ARE NOT YET CURRENT FOR 2009
THESE MATERIALS MAY BE CHANGED FOR 2009 = DO not download them YET!!!
HYPOTHESIS TESTS: 2 samples (Chapter 10 in Dean & Illowsky Collaborative Statistics) There are a lot of resources for chapter 10 that will be used during class lecture. They are in the documents below. The documents have not been combined into one single set of notes, so unfortunately you may need to access more than one of the resources below. You should print out and bring the document with the "problems for class lecture" to class because we will do most of those problems in class. You may wish to use the other resources also which can be viewed online to save paper & ink, or printed out if you prefer.
The first 3 problems in the document on the link above are in the textbook - read the textbook - in addition to taking notes when they are done in class.
The solutions or class discussion for problems 4, 5, 6 on the problem example sheet are posted below, and are not in the textbook
Solution to class problem #5 for hypothesis test of two means with paired samples
comparing insurance law exam scores before and after training http://nebula.deanza.edu/~bloom/Math10/PairedTLawExamSol.pdf Also includes discussion about what happens, and why, if you do this test incorrectly, as independent samples.
Discussion of class problem #6 for hypothesis test of two means with independent samples,
comparing average germination times for two types of seed. http://nebula.deanza.edu/~bloom/Math10/SeedsMeanTime.doc Note that what is posted for #6 is not a complete solution. Also note that we may not do this problem in its entirety in class but may only discuss why it is independent samples and not matched pairs. The purpose of this problem was to show that you need to read the problem carefully and can't jump to conclusions by briefly glancing at the problem.
