Econ 235 Quiz One
Name_
MULTIPLE CHOICE.
1) A summary measure that is computed to describe a characteristic from only a sample of the population is
called
A) a statistic.
B) a census.
C) the scientific method
D) a parameter.
2) Which of the following is a
If G is unknown
I If unknown, 6 can be estimated when determining the required sample size
I Use a value for (5 that is expected to be at least as large as the true 0
I Select a pilot sample and estimate 0 with the sample standard deviation, S
II To de
0 Interval width = (Highest value Lowest value)/Number of classes
0 The proportion or relative frequency = (Number of values in each class)/ Total number of
values
0 The percentage distribution = (Number of values in each class)/ Total number of values
Kaustav Misra Chapter 09
ECON 235 Introduction to Statistics Fundamentals of Hypothesis Testing methodology
Fall 20 1 1
-.______.__.__________________
We learned methods to determine whether the value of a sample mean is consistent With a known
populat
Chapter 1Introduction
1.1
(a)
The type of beverage sold yields categorical or qualitative responses.
1.3
(a)
The time it takes to download a video from the Internet yields numerical or
quantitative responses.
1.4
(a)
(c)
numerical, discrete
categorical
1.