Understanding Statistics					 J.R. Rasmussen

					Class 13 Outline

I) Tonight's Class

	A) Review of last class

	B) Continuation of Hypothesis testing
		1) Statistical significance & practical significance
		2) Hypothesis testing for proportions
		3) Group working session


II) Hypothesis testing continued: review the steps in hypothesis testing:  pg. 477

	A) Example 10.15 pages 488-489 
		1) P-value: how to calculate in Excel
		2) decision rule:  if P-value < significance level, reject

	B) Group exercises: use the steps on page 477 to do
		1) problem 10.80 page 510
		

III) Statistical significance and practical significance

	A) Example 10.16 page 489-490


IV) BREAK


V) Hypothesis testing for proportions

	A) the test statistic for the proportions case:  page 476

	B) example 10.11 pages 477-478

	C) Group exercise:  problem 10.33 page 481


VI) Work session on hypothesis testing

	A) Group exercises
		1) problem 10.6 page 462
		2) problem 10.12 (a) page 466
		

VII) Homework

	A) Remember assignment 6 is due Monday 8/08/11

	B) Homework work session on assignment 6