Quiz about CH 1 -Intro to Stats ( review)

Question 1

A parameter is a numerical description of a _________characteristic.

Accepted Answer

population

Answer

sample

Question 2

A statistic is a numerical description of a _________characteristic.

Accepted Answer

sample

Answer

population

Question 3

The two main branches of statistics are

Accepted Answer

Descriptive and inferential

Answer

population and sample

Answer

population and parameter

Answer

sample and statistic

Question 4

A statistic is a measure that describes a population characteristic.

Accepted Answer

false

Answer

true

Question 5

It is impossible for the Census Bureau to obtain all the census data about the population of the United States.

Accepted Answer

true

Answer

false

Question 6

A sample statistic will not change from sample to sample.

Accepted Answer

false

Answer

true

Question 7

Determine whether the data set is a population or a sample.

The number of floors in each home in a town

Accepted Answer

population

Answer

sample

Question 8

Determine whether the data set is a population or a sample.

The diastolic blood pressure of 10 patients in a hospital containing 200 patients

Accepted Answer

sample

Answer

population

Question 9

Determine whether the data set is a population or a sample.

The heights of half of the students in a class

Accepted Answer

sample

Answer

population

Question 10

Determine whether the data set is a population or a sample.

The salary of each teacher in a school

Accepted Answer

population

Answer

sample

Question 11

use the image to determine the sample

Accepted Answer

the sample is the party of registered voters in the country who responded to the survey

Answer

the sample is the party of registered voters in a certain country.

Question 12

use the image to determine the population

Accepted Answer

the population is the party of registered voters in a certain country.

Answer

the population is the party of registered voters in the country who responded to the survey

Question 13

Determine whether the data set is a population or a sample.

The number of floors in 17 buildings in a city

Accepted Answer

sample

Answer

population

Question 14

A survey of 122 law firms in a country found that the average hourly billing rate for partners was $656. Identify the population

Accepted Answer

all law firms in the country

Answer

all people in the country

Answer

the law firms that were surveyed

Answer

all partners

Question 15

A survey of 122 law firms in a country found that the average hourly billing rate for partners was $656. Identify the sample

Accepted Answer

the law firms that were surveyed

Answer

all people in the country

Answer

all law firms in the country

Answer

all partners

Question 16

A polling organization contacts 1241 teenagers who are 13 to 17 years of age and live in the United States and asks whether or not they had attended a concert this past year. what is the population in the study?

Accepted Answer

teenagers who are 13 to 17 years of age and live in the United States

Answer

teenagers who are 13 to 17 years of age

Answer

teenagers who are 13 to 17 years of age and live in the United States and have attended a concert

Answer

teenagers who are 13 to 17 years of age and have attended a concert

Question 17

A polling organization contacts 1241 teenagers who are 13 to 17 years of age and live in the United States and asks whether or not they had attended a concert this past year. what is the sample in the study?

Accepted Answer

The 1241 teenagers who are 13 to 17 years of age and live in the United States

Answer

teenagers who are 13 to 17 years of age

Answer

teenagers who are 13 to 17 years of age and live in the United States

Answer

teenagers who are 13 to 17 years of age and have attended a concert

Question 18

Determine whether the underlined value is a parameter or a statistic.

A study of 6,076 adults in public rest rooms found that 23% did not wash their hands before exiting.

Accepted Answer

statistic

Answer

parameter

Question 19

Determine whether the underlined value is a parameter or a statistic.

66 of the 92 passengers aboard an airship survived an explosion.

Accepted Answer

parameter

Answer

statistic

Question 20

Determine whether the underlined value is a parameter or a statistic.

in a study of all 1483 students at a college, it is found that 50% own a television

Accepted Answer

parameter

Answer

statistic

Question 21

Determine whether the underlined value is a parameter or a statistic.

A survey of 2212 adults in a country found that 85% think that militant terrorists are a major threat to the well-being of their country.

Accepted Answer

statistic

Answer

parameter

Question 22

Which of the following cannot be quantitative?

Accepted Answer

nominal

Answer

interval

Answer

ratio

Answer

ordinal

Question 23

Which of the following can be qualitative or quantitative?

Accepted Answer

ordinal

Answer

interval

Answer

ratio

Answer

nominal

Question 24

The years that a particular team won the world series are as follows.

1951 1977 1986 1988 1990 1994 2006 2012

determine the level of measurement of the data set

Accepted Answer

interval

Answer

ratio

Answer

nominal

Answer

ordinal

Question 25

The jersey numbers for players on a football team are listed below

18 16 12 20 4 33 15 23 65 10 22 21 19 24 5 8

17 25 3 77 6 14 30 2 9 11 28

determine the level of measurement of the data set

Accepted Answer

nominal

Answer

interval

Answer

ratio

Answer

ordinal

Question 26

Data at the ordinal level are quantitative only.

Accepted Answer

false

Answer

true

Question 27

More types of calculations can be performed with data at the nominal level than with data at the interval level

Accepted Answer

false

Answer

true

Question 28

Data at the ratio level cannot be put in order.

Accepted Answer

false

Answer

true

Question 29

Determine whether the variable is qualitative or quantitative.

State of residence

Accepted Answer

qualitative

Answer

quantitative

Question 30

Determine whether the variable is qualitative or quantitative.

registration numbers for a marathon

Accepted Answer

qualitative

Answer

quantitative

Question 31

Determine whether the variable is qualitative or quantitative.

Place of birth

Accepted Answer

qualitative

Answer

quantitative

Question 32

Determine whether the variable is qualitative or quantitative.

model numbers

Accepted Answer

qualitative

Answer

quantitative

Question 33

Determine whether the variable is qualitative or quantitative.

amount of phone storage in gigabytes

Accepted Answer

quantitative

Answer

qualitative

Question 34

Determine whether the variable is qualitative or quantitative.

distance in miles to the nearest school

Accepted Answer

quantitative

Answer

qualitative

Question 35

What is an inherent zero?

Accepted Answer

An inherent zero is a zero that implies none.

Answer

An inherent zero is a value that the variable can take

Answer

An inherent zero is a zero that occurs in the data set naturally.

Question 36

which sampling technique guarantees that members of each group within a population will be sampled.

Accepted Answer

stratified sample

Answer

simple random sample

Answer

cluster

Answer

systematic

Question 37

which sampling technique orders a population in some way and then select members of the population at regular intervals.

Accepted Answer

systematic

Answer

simple random sample

Answer

stratified sample

Answer

cluster

Question 38

which sampling technique orders a population in some way and then select members of the population at regular intervals.

Accepted Answer

systematic

Answer

simple random sample

Answer

stratified sample

Answer

cluster

CH 1 -Intro to Stats ( review)

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