Name
r
STAT 509
PRACTICE PROBLEMS FOR EXAM II
EXAM II w i l l b e g i v e n W e d n e s d a y , N o v e m b e r 5, 2 0 1 4 . It w i l l c o v e r C h a p t e r 6, Sections 1-7; C h a p t e r 7,
Sectio
Chapter 2
1
An
experiment is a procedure that is
carried out under controlled conditions, and
executed to discover an unknown result.
An
experiment that results in different
outcomes even when re
Chapter 4
A
continuous random variable is one which
takes values in an uncountable set.
They are used to measure physical characteristics
such as height, weight, time, volume, position, etc.
Example
Chapter 3
A variable that associates a number with the outcome of
a random experiment is called a random variable.
A random variable is a function that assigns a real
number to each outcome in the sa
Chapter 6
The
three main components of statistics for
answering a statistical question:
Design: Planning how to obtain data
Description: Descriptive Statistics refers to methods for
summarizing the
Chapter 7
A point estimate is a reasonable value of a population
parameter.
X1, X2, Xn are random variables.
Functions of these random variables, x-bar and s2, are also
random variables called statis
1
Name That Distribution!
Instructions:
Read each scenario. Determine which
probability distribution best models the
application.
Answer each probability question.
Suppose that milk is shipped to reta
Chapter 1
1
In God we Trust. All
others bring data!
-W. Edwards Deming
2
The
steps in the engineering method are:
1. Develop a clear and concise description of the problem.
2. Identify the important
NAME
Hypothesis Test Example
A random sample of 47 workers between the age of 18 and 25 was recently taken by GSS; they were
asked how many hours they worked in the previous week. The sample was norma
Name_KEY_
STAT 509 Fall 2014
Sections 002 and E02
QUIZ 4
October 1, 2014
Pareto Chart
Construct a Pareto Chart from the following data regarding defects in automobile doors. (8 pts)
Pareto Chart
Door
STAT 509 Fall 2014
Sections 002 and E02
QUIZ 5
October 8, 2014
Name
Central Limit Theorem
The amount of time that a customer spends waiting in line at an airport check-in counter is a
random variable
Exam 1 Review
Statistics 110, Fall 2011
Review Problems
1. If the scientist comes to the conclusion that the new scale is biased, what possible measurements (in pounds)
did he obtain when be weighed
GENG 200
Probability and Statistics
Lecture Note #10
Instructor: Prof Boualem Boashash
1
GENG 200
Probability and Statistics
Lecture Note #10
Chapter 4: Continuous Random Variable
and Probability Dist
GENG 200
Probability and Statistics
Lecture Note #13
Chapter 5:
Joint Probability Distributions
1
Chapter Outline
Two or More Random Variables
1.
Joint Probability distributions
b. Marginal Probabilit
Exam 1 List of Topics
Chapter 1
Individuals
Variable
Data
Know these three types of Studies: Observational Studies, Sample Surveys,
Experiments
Know the differences and similarities of these
Know wh
Chapter 4: Multiple Choice Questions
1.
Forecasts
a. become more accurate with longer time horizons
b. are rarely perfect
c. are more accurate for individual items than for groups of items
d. all of t
STAT 310
Homework 3
due: September 19, 2013
1. (6 pts) If R is the event that a convict committed armed robbery and D is the event that the convict
sold drugs, state in words what probabilities are ex