GB 303 Fall 2011
Name: _
Section No. _
Quiz 9 (Chapter 13 Covered) MULTIPLE CHOICE: Choose the one alternative that best completes the statement or answers the question. 1. If the correlation coefficient (r) = 0, then A) the Y-intercept (b0) must equal 0.

GB 303 Fall 2011
Name:
Quiz 1
(Chapter 1&2 covered) 1) A numerical measure that describes a characteristic of a population is known as a: A) Population. B) Statistic. C) Parameter. D) Sample. 2) Which of these most likely describes a population? A) Respon

#5 BLC: Marcus Ly- [email protected]
March 7, 2012
Gen Bus 303 Stats
Professor Mullins
Handout 5: Discrete Probability Distributions [Questions]
1|Page
Source: Lind, Marchal, and Wathen (2003, 4 ed.). Basic Statistics for Business & Economics. Boston: McGraw-

ANOVA Review Sheet Answers 1. H0: A=B=C=D H1: at least one population mean is different from another. Reject H0 and conclude that at least one population mean is different from another. 2. MST = 17 (Between Groups) MSE = .5227 (Within Groups) F = 32.52 3.

GB 303 Fall 2011
Name:
Quiz 3
(Chapter 5 covered) 1) The strength of the relationship between two numerical variables is measured by the: A) Expected Value. B) Variance. C) Covariance. D) Standard Deviation. 2) Given the following probability distribution

1) Standard error of the mean: a) is never larger than the standard deviation of the population. b) decreases as the sample size increases. c) measures the variability of the mean from sample to sample. d) All of the above. 2) The central limit theorem i

#6 BLC: Marcus Ly- [email protected]
March 7, 2012
Gen Bus 303 Stats
Professor Mullins
Handout 6: The Normal Probability Distributions [Questions]
1|Page
Source: Lind, Marchal, and Wathen (2003, 4 ed.). Basic Statistics for Business & Economics. Boston: McGra

BLC: Marcus Ly- [email protected]
February 29, 2012
Gen Bus 303 Stats
Professor Mullins
Handout 7: Sampling Methods and the Central Limit Theorem [Questions]
1|Page
Source: Lind, Marchal, and Wathen (2003, 4 ed.). Basic Statistics for Business & Economics. Bo

BLC: Marcus Ly- [email protected]
February 14, 2012
Gen Bus 303 Stats
Professor Mullins
Handout 8: Estimation and Confidence Intervals [Questions]
1|Page
Source: Lind, Marchal, and Wathen (2003, 4 ed.). Basic Statistics for Business & Economics. Boston: McGra

#9 BLC: Marcus Ly- [email protected]
March 8, 2012
Gen Bus 303 Stats
Professor Mullins
Handout 9: One-Sample Tests of Hypothesis [Questions]
1|Page
Source: Lind, Marchal, and Wathen (2003, 4 ed.). Basic Statistics for Business & Economics. Boston: McGraw-Hill

MIDTERM TWO
CHAPTER 7
Why a sample instead of a census?
Less time consuming
Less costly to administer
Less cumbersome and more practical
Sampling frame
A listing of items that make up the population
Frames are data sources such as population lists, d

GB303 Fall 2010
Practice Question for Exam #3
1. True or False: When you reject the Ho hypothesis in a one-way ANOVA , you can conclude that there
is significant treatment effect.
A) True.
B) False.
2. Which of the following components in an ANOVA table a

General Business 303: Business Statistics
Review for Exam I
(Chapters 1 6)
2005
You may bring one 3 x 5 index card with whatever you want written on it.
Please note: I have tried to summarize the main points, but this may be incomplete!
*
I.
Terms to unde

To GB 303 students: Hints for Exam 2
Here are some hints on studying for the second exam. You should concentrate on the concepts
and understand the key terms at the end of each chapterdo not memorize definitions, but know
what the terms mean and how they

To GB 303 students:
Here are some hints on studying for the third exam. You should concentrate on the concepts and
understand the key terms in the glossary of each chapter-do not memorize definitions, but know what
they mean and how they relate.
You shoul

Greetings GB 303 students:
Here are some hints on studying for the final exam. You should concentrate on the concepts
and understand the key terms in the glossary of each chapter-do not memorize
definitions, but know what they mean and how they relate. Yo

#4 BLC: Marcus Ly- [email protected]
March 7, 2012
Gen Bus 303 Stats
Professor Mullins
Handout 4: A Survey of Probability Concepts [Questions]
1|Page
Source: Lind, Marchal, and Wathen (2003, 4 ed.). Basic Statistics for Business & Economics. Boston: McGraw-Hi

#3 BLC: Marcus Ly- [email protected]
March 7, 2012
Gen Bus 303 Stats
Professor Mullins
Handout 3: Describing Data: Numerical Measures [Questions]
1|Page
Source: Lind, Marchal, and Wathen (2003, 4 ed.). Basic Statistics for Business & Economics. Boston: McGraw

#2 BLC: Marcus Ly- [email protected]
March 7, 2012
Gen Bus 303 Stats
Professor Mullins
Handout 2: Describing Data: Frequency Distributions and Graphic Presentation [Questions]
1|Page
Source: Lind, Marchal, and Wathen (2003, 4 ed.). Basic Statistics for Busine

GB 303 Fall 2011
Name: _
Section No. _
Quiz 6 (Chapter 9 Covered) MULTIPLE CHOICE: Choose the one alternative that best completes the statement or answers the question. 1. A Type I error is committed when A) we reject a null hypothesis that is true. B) we

GB 303 Fall 2011
Name:
Quiz 7
(Chapter 10 covered) Use the following information for questions 1-3. A researcher suspects that sex discrimination is taking place at a local business. He examines the starting salaries of equally qualified men and women at

12/16/11
Thinking Challenge
The least squares method minimizes which of the following?
Thinking Challenges
Chapter 13
a) b) c) d)
SSR(regression; explained variaFon) SSE(error; unexplained variaFon) SST(total) All of the above
Parameter Point-EsFmat

ANOVA Review Sheet *(use alpha=.05 throughout)* 1. The following data represent scores from an experiment with one independent variable that has four levels or conditions. Each subject served in one condition only. A one-way ANOVA was conducted to determi

11/15/11
Thinking Challenges
Chapter 10
Thinking Challenge
Which of the following research situa:ons is most likely to use an independent-measures design? a) Evaluate the effec:veness of a training program by measuring how much faster workers complete

Chapter 10
Doug Bujakowski
Two-sample test decision tree
What's in our hypothesis?
Independent Populations 2
Related Populations
Use Z-test for proportions
Use F-test
2
known
2
unknown
Use paired t-test
Paired or matched samples Repeated measures (before

GB 303 Ch.11 DISCUSSION
Doug Bujakowski
ANOVA
"Factor" = Possible source of variation. Made up of two or more groups. "Block" = Another possible source of variation. We do not care about whether or not block means are different
How to decide
What does o

To GB 303 students: Here are some hints on studying for the third exam. You should concentrate on the concepts and understand the key terms in the glossary of each chapter-do not memorize definitions, but know what they mean and how they relate. You shoul

Pooled Variance: diff btwn 2 means t-stat= (x1-x2)-( 1-2) / S2p(1/n1 + 1/n2) S2p=( n1-1)S21+(n2-1)s22 / (n1-1)+(n2-1) CI for diff in 2 means (x1-x2)+- t/2 S2p(1/n1 + 1/n2) Separate Variance t-test for diff btwn 2 means t-stat= (x1-x2)-( 1-2) / (S21/n1 + S