CHAPTER 3DESCRIPTIVE STATISTICS: NUMERICAL MEASURES
MULTIPLE CHOICE
1. The measure of location which is the most likely to be influenced by extreme values in the data set is
the
a. range
b. median
c. mode
d. mean
ANS: D
PTS: 1
TOP: Descriptive Statistics
CHAPTER 1DATA AND STATISTICS
MULTIPLE CHOICE
1.
Methods for developing useful decision-making information from large data
bases is known as
a.
data manipulation
b.
data monitoring
c.
data base conversion
d.
data mining
ANS: D
2.
a.
b.
c.
d.
ANS: C
3.
a.
b
CHAPTER 9HYPOTHESIS TESTS
MULTIPLE CHOICE
1.
a.
b.
c.
d.
ANS: A
The critical value of t for a two tail test with 6 degrees of freedom is
2.447
1.943
2.365
1.985
PTS: 1
TOP: Hypothesis Tests
2.
It is known that the population variance (2) is 144. At 95% co
CHAPTER 3DESCRIPTIVE STATISTICS: NUMERICAL MEASURES
MULTIPLE CHOICE
1.
The measure of location which is the most likely to be influenced by extreme values in
the data set is the
a.
range
b.
median
c.
mode
d.
mean
ANS: D
a.
b.
c.
d.
PTS: 1
TOP: Descriptive
CHAPTER 4INTRODUCTION TO PROBABILITY
MULTIPLE CHOICE
a.
b.
c.
d.
1.
Each individual outcome of an experiment is called
the sample space
a sample point
an experiment
an individual
ANS: B
a.
b.
c.
d.
TOP: Probability Concepts
2.
The collection of all possib
CHAPTER 2DESCRIPTIVE STATISTICS: TABULAR AND GRAPHICAL
DISPLAYS
MULTIPLE CHOICE
a.
b.
c.
d.
1.
1
2
3
4
ANS: A
a.
b.
c.
d.
2.
1
2
3
4
ANS: A
a.
b.
c.
d.
c.
d.
PTS: 1
The minimum number of variables represented in a histogram is
PTS: 1
3.
Which of the follo
CHAPTER 6CONTINUOUS PROBABILITY DISTRIBUTIONS
MULTIPLE CHOICE
a.
b.
c.
d.
1.
Which of the following is a characteristic of the normal probability distribution?
The mean, median, and the mode are not equal
The distribution is not symmetrical
The standard d
CHAPTER 5DISCRETE PROBABILITY DISTRIBUTIONS
MULTIPLE CHOICE
1.
Which of the following is a characteristic of an experiment where the binomial
probability distribution is applicable?
a.
the experiment has at least two possible outcomes
b.
exactly two outco
CHAPTER 10INFERENCE 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 hypothesis should s
CHAPTER 11INFERENCES ABOUT POPULATION VARIANCES
MULTIPLE CHOICE
1.
A sample of 51 elements is selected to estimate a 95% confidence interval for the
variance of the population. The chi-square values to be used for this interval estimation are
a.
-1.96 and
ECON 83a: Statistics for Economic Analysis
Problem Set #2, Fall 2016
Instructor: Tymon Soczynski
Due Date: September 16, 2016
Instructions: Your homework may be submitted in either of two ways. First, you
can put it in a cardboard box in front of my offic