In inferential statistics the object is usually to
generalize from a _ to a _. sample;
population
Let's assume you are conducting an experiment to
determine the effect of a new drug on the incidence
of epileptic seizures. You select 20 epileptics from
the

Given a distribution of grouped scores, if an interval
is shown as 28, the interval is 6 units wide False
For the frequency distribution shown in the following
table,
= 25.
Score (X)
7
6
5
4
3
False
f
1
3
3
2
1
All frequency distributions should be of gro

A set of raw scores has a rectangular shape. The z
transformed scores for this set of raw scores has a
_ shape. Rectangular
Statistical methods that use sample data to make
statements about populations are called inferential
statistics. True
The binomial

1.
A recent report in BusinessWeek indicated that 32 percent of all employees steal from their company each year. (Round z-score computation to 2 decimal places and your final answers to 4 decimal places.) If a company employs 50 people, what is the proba

The dependent variable is the variable that is
systematically manipulated. False
If one measured the height of all the women at a
university and took an average of the data, the
university women would be a sample of the
population of all university women

Week 7 1. Warren County Telephone Company claims in its annual report that the typical customer spends $60 per month on local and long distance service. A sample of 12 subscribers revealed the following amounts spent last month. $63 $65 $64 $67 $56 $64 $6

1.
A survey of 39 students at the Wall College of Business showed the following majors: Accounting Finance Economics Managemen t Marketing 9 5 5 9 11
Suppose you select a student and observe his or her major. (a) What is the probability he or she is a man

Week 6 1. Listed below are the 35 members of the Metro Toledo Automobile Dealers Association. We would like to estimate the mean revenue from dealer service departments.
(a) We want to select a random sample of five dealers. The random numbers are: 65, 4,

The dependent variable is the variable that is
systematically manipulated. False
If one measured the height of all the women at a
university and took an average of the data, the
university women would be a sample of the
population of all university women

A history professor gives a quiz to his class and
records the following scores:
13, 11, 11, 9, 12, 13, 16, 14, 11, 10, 8, 13, 20.
The standard deviation for this distribution is
_. Assume sample scores. 3.12
The mean weight for team A with 15 members is 1

A researcher has collected some data on the amount
of time in seconds (to the nearest 0.1 second) that it
took trained rats to run through a maze. The data is
shown below arranged in a frequency distribution of
grouped scores.
The cumulative frequency for

Find the sum of squares (SS) for the following: 48, 96, 13, 16, 35,
81, 81, and 92. 8075.5
If two people are randomly selected (with replacement) form a
class containing 16 psychology students and 13 nursing students,
what is the probability of selecting

1.
A United Nations report shows the mean family income for Mexican migrants to the United States is $27,150 per year. A FLOC (Farm Labor Organizing Committee) evaluation of 30 Mexican family units reveals a mean to be $29,500 with a sample standard devia