Stat 321 Fall 2004 Final Exam
Preparation
- Wednesday, December 8 from 1:10-4pm in Studio classroom (02-206)
- Extra office hours:
- Monday 10-11am, 2-3pm
- Q&A session: Tuesday
7:30-9pm in Studio classroom
- Graded Investigations
17, 18 available after noon
Monday outside my office door
- Emphasizes more recent
material
- Sections 6.1, 7.1-7.3
- Handouts from days 36-40
- Investigations 17-18
- Suggested homework
problems from weeks 10-11
- Has substantial cumulative
aspect as well
- Roughly 1/2 on newer
material
- Study previous review
sheets, exams
- You may use book, handouts, assignments,
notes
- Technology
- Bring calculator
- No use of Minitab
- Minitab output may be
included
- Possibly including
irrelevant output
- Interpretations, explanations
as important as calculations
- Comparable to in-class,
investigation, homework, previous exam questions
Big (More Recent) Ideas
- Point estimation
- Random sample
- Desirable properties
- Unbiasedness
- Minimum variance
- Analysis through
simulation
- Analysis through
properties of expected value, variance
- Interval estimation
- Basic form: point
estimate +/- margin of error
- Margin of error =
critical value x standard deviation of point estimate
- Effects of sample
size, confidence level
- Interpretation
- “Confidence”
means that if repeated samples were chosen and intervals constructed in
this manner, then in the long run 95% (or whatever the confidence level
is) of the intervals would succeed in capturing the population parameter
- Does not try to
estimate individual values, only parameter values
- Procedures
- CI for population
mean mu
- With population
standard deviation sigma known
- With population
standard deviation sigma not known
- t-procedure
- Requires normal
population or large sample size
- CI for population
proportion p
- Wald
procedure
- Adjusted Wald procedure
- All procedures
require random sample
- Sample size
determination
Some Advice
- Be prepared to
think/explain/interpret
- Do not just plug into
formulas from text
- Organize notes for efficient
retrieval of information
- Don’t plan to use text,
notes too much
- Prepare as if exam
were closed book/notes
- Understand, don’t
memorize
- Re-read
- Handouts
- Especially expository
passages, “boxed” paragraphs
- Review sheets from
first three exams
- Questions and
solutions from first three exams
- Chapters from text
- Review problems
- Re-work examples from
handouts
- Re-work investigations
- Re-work suggested homework
problems
- Re-work examples from
text
- Re-work questions from
previous exams
- Work additional
exercises from text