Prob. and Stat.
Test 1 and 2 Review
Study Checklist
1.1
Individuals, Variables, Units
Experiment vs Observational Study
Population Census vs Sample Survey
2.1
Voluntary Response Sampling
Convenience S
Chapter 2.1
Prob and Stat
Is this a SRS? If not, how would you change it?
1.
You choose every 5th person who walks in the room until you have a sample of 10.
(total of 50 people)
2.
You assign a numbe
Prob and Stat
Quiz Review 1.1, 2.1-2.2
1.
Create an experiment. Identify the individuals, variable measured and units.
2.
Create an observational study. Identify the individuals, variable measured and
Chapter 2- Margin of Error Review
What is margin of error?
We have _ % confidence that our sampling methods would give a result within _
points from the population.
What does margin of error include?
Prob and Stat
2.2 Margin of Error
Margin of Error -/+ _ points
If we took many samples using the same method we used to get this sample, 95% of the samples
would give a result within plus or minus _ p
Review Answers for Quiz on Topics 14 16
1) Choose 20 digits from the random number table. Let 0 or 1 be getting a special prize.
Let the digits 2 9, inclusive, represent not getting a special prize.
H
Review for Quiz on Topics 14 16
1) Suppose that the probability of finding a special prize in a box of popcorn is 0.20.
Describe how you could simulate looking for the special prize in 20 boxes. Then,
Chapter 1
Prob. and Stat.
Population vs Sample:
Census vs Survey:
Perceived vs Actual Data:
Guess
Actual
% of US residents over 25 who have completed H.S. _
_
% of US residents who have completed coll
Probability and Statistics
2.3 Bias Sampling and Non Sampling
Discuss the bias in each situation:
1.
You decide to go to peoples homes during the day and ask how much time they have to
volunteer for y