- Last Time: Exciting climax of Hypothesis Testing
- Today: Begin t-distribution (Section 12.1, 12.2, w/ Minitab)
- Return 10.1-10.3 and
10.4
- Questions from chapter 11?
- Chapter 11 homeworks due next time (Tuesday after break)
- Practice for Type I and Type II errors
- Sections 12.1-12.2 - the t distribution replaces the Z distribution
- Major issue: we want to use the sample standard
deviation, rather than the population standard
deviation, which is generally unknown.
-
from this website
- The t-distribution is discussed in section 8.5; you can
see a comparison of the normal and the t on page 253.
- Examples:
- #12.44 (constructing a confidence interval)
- #12.32 (test of hypothesis)
- Next time: Finish the t!
Website maintained by Andy Long.
Comments appreciated.
