Homework: Chapter 8 (Inference for proportions, chi-square tests)
Test of change in a proportion (Moore and McCabe section 8.2):
- Problem 8.31 (effectiveness of aspirin in treatment of stroke)
Test of independence in two-way tables (Moore and McCabe section 8.3):
- Problem 8.40 (Relationship between prescription practices and doctor location)
- Problem 8.56 (Relationship between blood type and ethnic groups)
- Problem 8.74 (Statistics in law -- fairness of jury selections)
Goodness of fit to a hypothesized distribution (from handout and notes on web):
- A. Pseudo-random number generation: Use Minitab to generate 200 values
supposed to have the uniform distribution with values between 0 and 1.
Give a histogram of the observed counts with five or ten equal spaced bins.
What would be the expected counts according to the uniform distribution?
Conduct a chi-square test of goodness of fit.
- B. Give a chi-square test of normality of the mathematics SAT scores in
the Minitab data file ``GRADES.MTW''