Deck 1: Basic Ideas

Question 1

Determine which of the following describes nominal data. i. Michaelangelo's sells small, medium, large, and jumbo pizzas.
Ii) Michaelangelo's most-requested toppings are pepperoni, black olives, and mushrooms.

A) ii only
B) i only
C) both i and ii
D) neither i nor ii

Answer 1

ii only

Question 2

By visiting homes door-to-door, a municipality surveys all the households in 149 randomly-selected neighborhoods to see how residents feel about a proposed property tax increase. Identify the type of
Sample that is being used.

A) voluntary response sample
B) systematic sample
C) stratified sample
D) cluster sample

Answer 2

cluster sample

Question 3

The names of all 126 students in a professor's class are written on identical slips of paper, and the slips are placed into a large glass jar. Then, the professor selects 14 random slips from the jar.
Identify the kind of sample that is being used.

A) sample of convenience
B) simple random sample
C) systematic sample
D) cluster sample

Answer 3

simple random sample

Question 4

A pollster randomly samples 145 Democrats, 154 Republicans and 19 Independents (all registered voters) in Metro City and asks each poll participant which mayoral candidate he or she prefers.
Identify the kind of sample that the pollster is using.

A) cluster sample
B) voluntary response sample
C) sample of convenience
D) stratified sample

Question 5

In a small town, 84% of the residents, aged 16 or more years old, own a car. Is this an example of statistic or a parameter?

A) Statistic
B) Parameter

Question 6

Choose the answer below that best completes the following statement. A _____________ is a number that describes a sample.

A) parameter
B) population
C) statistic
D) measurement

Question 7

Determine which of the following describes nominal data. i. My favorite days of the week are Friday, Saturday, and Tuesday.
Ii) My favorite day of the week is Friday, my second-favorite is Saturday, and
Third-favorite is Tuesday.

A) both i and ii
B) i only
C) ii only
D) neither i nor ii

Question 8

Determine which of the following describes qualitative data. i). the volume of a shipping container, in gallons
Ii)) the name of the material from which the container is made
Iii). the shape of the container

A) i and iii only
B) ii and iii only
C) i and ii only
D) i, ii, and iii

Question 9

An electronics manufacturer test every 50th cell phone to verify that it is functioning properly. Identify the kind of sample that is being used.

A) systematic sample
B) stratified sample
C) simple random sample
D) cluster sample

Question 10

Determine which of the following describes quantitative data. i). the name of a chemical sample
Ii)) the mass of a chemical sample
Iii). the color of a chemical sample

A) ii only
B) i only
C) i, ii, and iii
D) i and ii only

Question 11

Which of the following sample types should you always regard as unreliable?

A) voluntary response samples
B) simple random samples
C) stratified samples
D) cluster samples

Question 12

Choose the answer below that best completes the following statement. A ________ is a number that describes a population.

A) summary
B) statistic
C) sample
D) parameter

Question 13

A middle school student passes out leaflets to the adults at a school function. The leaflets ask the recipient to indicate whether they believe in anthropogenic global warming. The bottom of the
Leaflet indicates that the completed leaflet should be returned to the student. Identify the kind of
Sample that is being used.

A) stratified sample
B) cluster sample
C) systematic sample
D) sample of convenience

Question 14

Determine which of the following describes ordinal data. i. My best friends are Georgia, Amithaba, and Raphael.
Ii) My favorite numbers are 2, 7 and 13.

A) neither i nor ii
B) i only
C) both i and ii
D) ii only

Question 15

Determine which of the following describes qualitative data. i). the make of the car with license plate number VNS-862
Ii)) the license plate number VNS-862
Iii). the number of vehicles whose license plate number begins with "VNS"

A) neither i, nor ii, nor iii
B) iii only
C) i only
D) i and ii only

Question 16

In a recent poll, 64% of the respondents supported stricter gun laws. Is this an example of statistic or a parameter?

A) Statistic
B) Parameter

Question 17

Of the televisions offered at an electronics store, 42% cost less than $500.00. Is this an example of statistic or a parameter?

A) Statistic
B) Parameter

Question 18

Determine which of the following describes ordinal data. i. In the horse race, Betty's Girl won, Mr. Ed placed, and Wabash showed.
Ii) In the horse race, I bet on Betty's Girl to win, Mr. Ed to place, and Wabash to show.

A) both i and ii
B) neither i nor ii
C) i only
D) ii only

Question 19

Determine which of the following describes quantitative data. i). the length of an object in feet
Ii)) the speed of an object in meters per second
Iii). the number of objects that are blue

A) i, ii, and iii
B) i and ii only
C) iii only
D) i only

Question 20

In a survey of 1000 teenagers, 23% of them said they use tobacco products. Is this an example of statistic or a parameter?

A) Statistic
B) Parameter

Question 21

In a randomized experiment, if there are large differences in outcomes among the treatment groups, we can conclude that the differences are due to _____________________.

A) random luck
B) the treatments
C) experimental error
D) deliberate data manipulation

Question 22

In an experiment, subjects are put into two categories according to sex, and then each subject is randomly assigned a treatment . This is an example of...

A) randomized blocking
B) gender bias
C) confounding
D) observational studies

Question 23

Which one of the following data are discrete?

A) the height of the tallest player on Duke University's men's basketball team
B) the average preseason ranking of the University of Connecticut's women's basketball team over the past 10 years
C) the average height of players on the University of Connecticut's women's basketball team
D) the pre-season ranking of Duke University's men's basketball team

Question 24

A sign in a grocery store claims that 92% of their customers believe them to have the freshest produce in the city. Specify the type of bias involved.

A) Leading question
B) Voluntary response
C) Social acceptability
D) Self-interest

Question 25

You ask your friends who they plan to vote for in the next congressional election. Based on their responses, you conclude that the candidate you favor cannot lose!
This is most likely an example of ...

A) voluntary response bias
B) sampling bias
C) randomized sampling
D) self-interest bias

Question 26

Which one of the following data are continuous?

A) all of these represent continuous data
B) the number of times the file has been downloaded
C) the time remaining for an MP3 music download
D) the number of musicians performing in the MP3 file

Question 27

A radio talk show invites people to call in and state whether or not they think that sexual harassment in the work place is a common problem.

A) Voluntary response
B) Self-interest
C) Sampling
D) Social acceptability

Question 28

In an experiment, the ______________ is what is measured on each experimental unit.

A) category
B) outcome
C) subject
D) treatment

Question 29

Which of the following is the best description of a double-blind experiment?

A) an experiment in which both the investigators and the subjects are hidden from the others' views
B) an experiment in which neither the investigators nor the subjects know the others' names
C) an experiment in which neither the investigators nor the subjects know how the treatments have been assigned
D) an experiment in which the subjects are blindfolded so they cannot see which treatment is applied to them

Question 30

A small brew pub sent out questionnaires to a simple random sample of 250 customers asking whether they would like the brewery to include an imperial stout in their regular offerings. Of the
250 questionnaires, 12 were returned and 10 of those were in favor of including the stout. Specify
The type of bias involved.

A) Sampling
B) Nonresponse
C) Voluntary response
D) Self-interest

Question 31

Which one of the following data are continuous?

A) the rankings of the trees, from most numerous to least numerous
B) the number of species of trees in a park
C) the average height of a sample of trees
D) the number of representatives of each species in the park

Question 32

The question... "Do you favor a higher standard of living, even though it produces unclean air and water?"
).. is an example of ...

A) framing
B) sampling bias
C) leading question bias
D) random sampling

Question 33

When experimental units are people, they are sometimes called ________________.

A) subjects
B) personnel
C) topics
D) human units

Question 34

A(n) _______________ makes it difficult to determine whether an experimental outcome is due to the applied treatment.

A) confounder
B) perplexer
C) error
D) uncooperative subject

Question 35

Which of the following is the best description of a randomized experiment?

A) an experiment in which the treatments are assigned randomly to experimental units
B) an experiment in which the investigators are chosen at random
C) an experiment in which the outcomes are random
D) an experiment in which the experimental units are selected at random

Question 36

Which one of the following data are discrete?

A) the latitude and longitude of the boat's port of departure
B) the number of crew members on the boat
C) the speed of the boat's propeller, in revolutions per minute
D) the latitude and longitude of a boat at sea

Question 37

People are reluctant to admit to behavior that may reflect negatively on them. This can lead to ...

A) voluntary response bias
B) social acceptability bias
C) hurt feelings
D) sampling bias

Question 38

When rolling two six-sided dice, your total roll ranges from 2 (double ones) to 12 (double sixes).Characterize the nature of the roll total.

A) quantitative and continuous
B) quantitative and discrete
C) qualitative and continuous
D) qualitative and discrete

Question 39

An experiment that tends to overestimate or underestimate the true value is said to be ______________.

A) un-randomized
B) randomized
C) biased
D) flagrant