Statistics 104: Section 8
TF: Ruth Kwan
Date: Thursday, 11/13/08
OH: Thursday, 3-4PM in Room 600
Section Overview
Common problems on Problem Set 7
Regression Reports (due by 4PM on Wednesday, November 26)
Statistical Week in Review
Practice Problems
Commo
Practice Test 2
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
_
1. A regression analysis between sales (Y in $1000) and advertising (X in dollars) resulted in the following
equation
Y-hat = 30
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CHAPTER NINETEEN
NONPARAMETRIC METHODS
MULTIPLE CHOICE QUESTIONS
In the following multiple choice questions, circle the correct answer.
1.
The level of measurement that allows for the rank ordering of data items is
a. nominal measurement
b. ratio measurem
CHAPTER THIRTEEN
ANALYSIS OF VARIANCE AND EXPERIMENTAL DESIGN
MULTIPLE CHOICE QUESTIONS
In the following multiple choice questions, circle the correct answer.
1.
In an analysis of variance problem if SST = 120 and SSTR = 80, then SSE is
a. 200
b. 40
c. 80
CHAPTER FOURTEEN
SIMPLE LINEAR REGRESSION
MULTIPLE CHOICE QUESTIONS
In the following multiple choice questions, circle the correct answer.
1.
The standard error is the
a. t-statistic squared
b. square root of SSE
c. square root of SST
d. square root of MS
Practice Test 4 Bus 2023
Directions: For each question find the answer that is the best solution provided. There is only one
correct answer.
1.
For a sample size of 30, changing from using the standard normal distribution to using the t
distribution in a
CHAPTER 14SIMPLE LINEAR REGRESSION
MULTIPLE CHOICE
1. In a regression analysis, the error term is a random variable with a mean or expected value of
a. zero
b. one
c. any positive value
d. any value
ANS: A
PTS: 1
TOP: Regression Analysis
2. The coefficien
CHAPTER 11COMPARISONS INVOLVING PROPORTIONS AND A TEST OF
INDEPENDENCE
MULTIPLE CHOICE
1. When developing an interval estimate for the difference between two population proportions, with
sample sizes of n1 and n2,
a. n1 must be equal to n2
b. n1 must be s
CHAPTER TEN
STATISTICAL INFERENCE ABOUT MEANS AND PROPORTIONS WITH
TWO POPULATIONS
MULTIPLE CHOICE QUESTIONS
In the following multiple choice questions, circle the correct answer.
1.
If we are interested in testing whether the proportion of items in popul
CHAPTER 10STATISTICAL INFERENCE ABOUT MEANS AND
PROPORTIONS WITH TWO POPULATIONS
MULTIPLE CHOICE
1. If we are interested in testing whether the proportion of items in population 1 is larger than the
proportion of items in population 2, the
a. null hypothe
Bus Stat Practice Test 4
Multiple Choice
Identify the choice that best completes the statement or answers the question.
Exhibit 11-3
When individuals in a sample of 150 were asked whether or not they supported capital punishment, the
following information
Exhibit 10-1
Salary information regarding male and female employees of a
large company is shown below.
Male
Female
Sample Size
64
36
Sample Mean Salary (in
44
41
$1,000)
128
72
Population Variance (2)
11. Refer to Exhibit 10-1. The point estimate of the d
CHAPTER TWELVE
TESTS OF GOODNESS OF FIT AND INDEPENDENCE
MULTIPLE CHOICE QUESTIONS
In the following multiple choice questions, circle the correct answer.
1.
A population where each element of the population is assigned to one and only
one of several class
CHAPTER NINE
HYPOTHESIS TESTS
MULTIPLE CHOICE QUESTIONS
In the following multiple choice questions, circle the correct answer.
1.
In hypothesis testing, the tentative assumption about the population parameter is
a. the alternative hypothesis
b. the null h
CHAPTER 9HYPOTHESIS TESTS
MULTIPLE CHOICE
1. An assumption made about the value of a population parameter is called a
a. hypothesis
b. conclusion
c. confidence
d. significance
ANS: A
2. If the probability of making type II error is not examined, then the
Chapter 14 Simple Linear Regression
Learning Objectives 1. 2. 3. 4. 5. 6. 7. 8. Understand how regression analysis can be used to develop an equation that estimates mathematically how two variables are related. Understand the differences between the regre
CHAPTER NINETEEN
NONPARAMETRIC METHODS
MULTIPLE CHOICE QUESTIONS
In the following multiple choice questions, circle the correct answer.
1.
The level of measurement that allows for the rank ordering of data items is
a. nominal measurement
b. ratio measurem
Statistics
Yue
Assignment #2, Due 2010/04/09
March 23, 2010
1. Allied Corporation wants to increase the productivity of its line workers. Four
different programs have been suggested to help increase productivity. Twenty
employees, making up a sample, have
Statistics
Yue
Assignment #2, Due 2010/04/09
March 23, 2010
1. Allied Corporation wants to increase the productivity of its line workers. Four
different programs have been suggested to help increase productivity. Twenty
employees, making up a sample, have
CHAPTER THIRTEEN
ANALYSIS OF VARIANCE AND EXPERIMENTAL DESIGN
MULTIPLE CHOICE QUESTIONS
In the following multiple choice questions, circle the correct answer.
1.
In an analysis of variance problem if SST = 120 and SSTR = 80, then SSE is
a. 200
b. 40
c. 80
THE COLLEGE OF THE BAHAMAS
INTERMIDIATE STATISTICS
FIRT INTERM EXAM
STATISTICS 301
TIME: 2 Hours
DIRECTIONS: Answer ONLY FIVE questions and A BONUS question.
SEMESTER 04-2004
TOTAL: 110 PTS.
Q1. A mail order business prides itself in its ability to fill c
1Chapter 1 - The Demand for Audit and Other Assurance Services
1-1 The relationship among audit services, attestation services, and assurance services is reflected in Figure 1-3 on page 13 of the text. An assurance service is an independent professional s
Chapter 12 Tests of Goodness of Fit and Independence
Learning Objectives 1. 2. 3. 4. 5. 6. Know how to conduct a goodness of fit test. Know how to use sample data to test for independence of two variables. Understand the role of the chi-square distributio
1. In recent years the interest rate on home mortgages has declined to less than 6.0
percent. However, according to a study by Federal Reserve Board the rate charge on
credit card debit is more than 14 percent. Listed below is the interest rate charged on
MAR 5621
Advanced Statistical Techniques
Summer 2003
Dr. Larry Winner
Chapter11Simplelinearregression
Types of Regression Models (Sec. 11-1)
Linear Regression: Y i 0 1 X i i
Y i - Outcome of Dependent Variable (response) for ith experimental/sampling unit
Practice Test 3 Bus 2023
Directions: For each question find the answer that is the best solution provided. There is
only one correct answer.
1.
A random variable that can assume only a finite number of values is referred to as a(n)
a.
infinite sequence
b.
Sample Questions
Chapter 11
1. A sample of 15 items provides a sample mean of 18 and a sample variance of 16.
Compute a 95% confidence interval estimate for the standard deviation of the population.
ANSWER:
2.93 to 6.31 (rounded)
2. A random sample of 25
Chapter 10
Statistical Inference about Means and
Proportions with Two Populations
Learning Objectives
1.
Be able to develop interval estimates and conduct hypothesis tests about the difference between two
population means when 1 and 2 are known.
2.
Know t
Chapter 11
Inferences About Population Variances
Learning Objectives
1.
Understand the importance of variance in a decision-making situation.
2
Understand the role of statistical inference in developing conclusions about the variance of a single
populatio