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 scientifi
Exam 3
ECON 235 Fall 30th Nov. 2011
Introduction to Statistics
Total Possible Points = 100
(40 Problems = 40*2.5 =100)
Time - 3:00 hrs
Email:
0 Condence intervals: Point Estimate i (Critical
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 est
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 = (N
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 va
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 re