CHAPTER 1
WHAT IS STATISTICS?
SECTIONS 1  4
MULTIPLE CHOICE QUESTIONS
In the following multiplechoice questions, please circle the correct answer.
1.
You asked five of your classmates about their height.
On the basis of this information, you
stated that the average height of all students in your university or college is 65 inches.
This is an example of:
a.
descriptive statistics
b.
statistical inference
c.
parameter
d.
population
ANSWER:
b
4.
A summary measure that is computed from a population is called a
a.
parameter
b.
statistic
c.
population
d.
sample
ANSWER:
a
6.
Which of the following is not the goal of descriptive statistics?
a.
Summarizing data
b.
Displaying aspects of the collected data
c.
Reporting numerical findings
d.
Estimating characteristics of the population
ANSWER:
d
8.
Descriptive statistics deals with methods of:
a.
organizing data
b.
summarizing data
1
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2
Chapter One
c.
presenting data in a convenient and informative way
d.
All of the above
ANSWER:
d
10.
A company has developed a new battery, but the average lifetime is unknown. In order to
estimate this average, a sample of 500 batteries is tested and the average lifetime of this
sample is found to be 225 hours. The 225 hours is the value of a:
a.
parameter
b.
statistic
c.
sample
d.
population
ANSWER:
b
13.
Researchers suspect that the average number of credits earned per semester by college
students is rising.
A researcher at Michigan State University (MSU) wished to estimate
the number of credits earned by students during the fall semester of 2003 at MSU.
To do
so, he randomly selects 500 student transcripts and records the number of credits each
student earned in the fall term 2003.
He found that the average number of semester
credits completed was 14.85 credits per student.
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 Spring '10
 goldstein
 Statistics, Descriptive statistics

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