AP Statistics
Unit 3B
Homework & Review
Answers
1. (a) t * = 2.262
(b) t * = 2.861
(c) Table B: t * = 2.660; technology invT(area: .995; df: 76) = 2.642
2. It would not be wise because the sample size
STATISTICS
SECTION I
Timel hour and 30 minutes
Number of questions-40
Percent of total gradeSD
Directions: Solve each of the following problems, using the available space for scratchwork. Decide which
AP Statistics
Unit 2B: Inference About Proportions
Dates
Jan 30/
Feb 2
Feb 3/4
Feb 5/6
Feb 9/10
Feb 11/12
Feb 13/17
Section(s) and Topic(s)
Confidence Interval for a Population Proportion
The OneSampl
AP Statistics
AP Set 2
Spring
Name: _ Period: _
Points: _ / 8
Directions: Show all your work. Indicate clearly the methods you use, because you will
be graded on the correctness of your methods as wel
AP Statistics
AP Set 2
Spring
Name: _ Period: _
Points: _ / 8
Directions: Show all your work. Indicate clearly the methods you use, because you will
be graded on the correctness of your methods as wel
AP Statistics
AP Set 3
Spring
Name: _ Period: _
Points: _ / 8
Directions: Show all your work. Indicate clearly the methods you use, because you will
be graded on the correctness of your methods as wel
Unit 2B Test Review Extra Problems
MULTIPLE CHOICE:
1. A poll identifies the proportions of highincome and lowincome voters who support
a decrease in taxes. If we need to know the answer to be within
Statistics Independent Study
Page 1 of 7
Mixed Practice with Multiple-Choice and Free-Response Questions
Answers
Multiple-Choice Section
_
1.
C
21.
B
2.
B
22.
D
3.
C
23.
A
4.
D
24.
E
5.
D
25.
C
6.
D
2
Unit 2B Test Review Extra Problems Solutions
Multiple Choice
1. C
2. E
3. C
4. B
5. E
6. A
7. D
8. B
9. C
10. B
11. A
12. B
13. D
14. A
15. C
16. C
17. A
18. C
19. A
20. B
Free Response
1. (a) STATE:
Unit 3B Test Review Extra Problems Solutions
ANSWERS
Multiple Choice
1. C
2. D From the ttable, critical value t* = 2.756 with df = 29.
1.2
3. C Using the t scores: 28 + 2.045
.
30
4. C df = 4
0.274
3
AP Statistics: Syllabus 1
Syllabus 1058793v1
Scoring Components
SC1 The course provides instruction in exploring data.
4
SC2 The course provides instruction in sampling.
5
SC3 The course provides inst
Advanced Placement Statistics
Union Grove High School
Objective:
AP Statistics is a rigorous, college level non-calculus based course intended to be the equivalent of a first yea
college level course.
Statistics Independent Study
Page 1 of 19
Mixed Practice with Multiple-Choice and Free-Response Questions
Study Sheet
Multiple-Choice Section
Choose the one best answer for each of the following quest
Unit 1B Test Review Extra Problems
Multiple Choice: Identify the letter of the choice that best completes the statement or
answers the question.
1. Suppose you take a random sample of size 25 from a p
AP Statistics
Unit 1B: Introduction to Inference
Dates
Jan 6/7
Jan 8/9
Jan 12/13
Jan 14/15
Jan 16/20
Jan 21/22
Jan 23/26
Jan 27/28
Section(s) and Topic(s)
Administration
The Sampling Distribution of p
You must demonstrate (or assume, if necessary) that the following conditions are met before performing a hypothesis test or constructing a confidence interval:
One sample
1.
2.
3.
sample is random
sta
AP Statistics
Unit 1B
Homework & Review
You may use a calculator on the entire test and you will be given the following equations:
Formulas
(I) Descriptive Statistics
x
x
P A B P A P B P A B
i
n
1
2
AP Statistics
AP Set 4
Spring
Name: _Key_ Period: _
Points: _ / 8
Directions: Show all your work. Indicate clearly the methods you use, because you will
be graded on the correctness of your methods as
AP Statistics
AP Set 3
Spring
Name: _ Period: _
Points: _ / 8
Directions: Show all your work. Indicate clearly the methods you use, because you will
be graded on the correctness of your methods as wel
Chapter 4 Test Review
AP Stats
1. Suppose the correlation between two variables x and y is due to the fact that both are responding to
changes in some unobserved third variable. What is this due to?
2
AP Statistics
Unit 2B
Homework & Review
You may use a calculator on the entire test and you will be given the following equations:
Formulas
(I) Descriptive Statistics
x
x
P A B P A P B P A B
i
n
1
2
How to Write AP Statistics Exam Responses
Turning Insights into Solutions
As students work through the free-response questions on an AP Statistics Exam, they are asked to respond in a
variety of ways.
AP Statistics
Unit 1B
Homework & Review
ANSWERS:
1. A. Both A and B appear to be unbiased but A has less variability than B.
2. (a) NormalCan assume there are more than 1000, 10n = (10)(100) = 1000,
i
Unit 3B Test Review Extra Problems
Multiple Choice:
1. What is t0.01 (20)?
(A)1.325
(B) 2.197
(C) 2.528
(D) 2.845
(E) None of the above
2. What is the critical value for t for a 99% confidence interva
Five Things You Must Know for the AP Statistics Exam
1. Graders want to give you credithelp them! Make them understand what you are doing,
why you are doing it, and how you are doing it. Dont make the
AP Statistics
Unit 3B: Inference About Means
Dates
Feb 18/19
Feb 20/23
Feb 24/25
Feb 26/27
Mar 2/3
Section(s) and Topic(s)
Confidence Interval for a Population Mean
The OneSample t Test for Means
Pair