TEST 3 REVIEW
Chapter 9
Chapter 10
VOCABULARY & CONCEPTS
Confidence Interval
Point Estimate
Critical value
Margin of Error
Hypothesis Test
Null Hypothesis
Alternative Hypothesis
Type I & II Errors
Significance
Classical (Critical Value) Test Method
P-Value Test Method
Determining the Conclusion about the Null Hypothesis
CHAPTER 9
SECTION
9.1
KNOW HOW TO
MYMATHLAB PROBLEMS
Confidence Interval Concepts
1, 2, 3
Find the Critical Value Z for a Proportion 4, 5
2
9.2
Find the Point Estimate p & Margin of
Error for a Proportion from a Confidence
Interval
Find a Confidence Interval for a Proportion
Interpret the Results for Confidence Intervals
Find the Sample Size n required to achieve a
given Margin of Error.
Find and Understand the Critical Value t
6, 7
8, 9, 10, 12, 13
11, 12, 13
14, 15
1
2
for a Mean with an unknown Population
Standard Deviation
2, 3
Find the Point Estimate x and Margin of
Error E from a Confidence Interval
Find the Confidence Interval for a Mean with 4, 5, 8, 9, 10
an unknown Population Standard Deviation
Interpret the Results for Confidence Intervals 6, 7, 8, 10
9.3
Confidence Interval Concepts for Standard
Deviation
Find Critical Values  L2 ,  R2 for Standard
Deviation or Variance
Find the Confidence Intervals for a Standard
Deviation or Variance
1, 4, 5
2, 3
4, 5, 6, 7
CHAPTER 10
SECTION
10.1
10.2
10.3
10.4
KNOW HOW TO
Concepts concerning Error Types
Concepts concerning Null & Alternative
Hypothesis
Concepts Concerning Conclusions
Concepts and Requirements for Hypothesis
Testing One Sample Proportion Populations
Find the Critical Value & Type of Test for
Testing One Sample Proportion Populations
Use Classical (Critical Value) Method and PValue Method to test a Null Hypothesis for
Testing One Sample Proportion Populations
Perform full Hypothesis Tests for Testing
One Sample Proportion Populations
Find the Critical Value & Type of Test for
Testing One Sample Mean with unknown
Population Standard Deviation
Use Classical (Critical Value) Method and PValue Method to test a Null Hypothesis for
Testing One Sample Mean with unknown
Population Standard Deviation
Perform full Hypothesis Tests for Testing
One Sample Mean with unknown Population
Standard Deviation
Find the Critical Value & Type of Test for
Testing One Sample Standard Deviation
Use Classical (Critical Value) Method and PValue Method to test a Null Hypothesis for
Testing One Sample Standard Deviation
Perform full Hypothesis Tests for Testing
One Sample Standard Deviation
MYMATHLAB PROBLEMS
1, 2, 7, 12, 15
4, 5, 6, 7, 12, 13, 14
3, 8, 9, 10, 11, 12, 14
1, 2, 7
3
4, 5, 6
8, 9, 10, 11, 12
1
2, 3, 4, 5
6, 7, 8, 9, 10
1
2, 3, 4, 5
6, 7, 8
FORMULAS FOR EXAM 3
CHAPTER 9:
Sample Size Estimate for Proportions:
 Z 
n  0.25  2 
 E 


2
p known or
 Z 
n  0.25  2 
 E 


Confidence Interval for
:
p  Z
Confidence Interval for p:
Confidence Interval for
x  t * s
n
2
 :
2
p*q
n
1-PropZInt
Upper Bound =
 n 1 s 2
2
2
 n 1 s 2
12
CHAPTER 10:
Test Statistics:
Means:
Proportions:
x  x
x
s
x
n
x  x x  
t

s
x
n
t
Std. Dev./Variance

2 
 n 1 s 2
2
otherwise
T-Interval
Lower Bound =
2
2
T-Test
1-PropZTest
2