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Unit 4 Collecting Data

Total questions: 75

Worksheet time: 1hrs 22mins

Name
Class
Date
1.
3.  A hospital wants to open a gym. They ask the night-shift ER staff when they would use the gym.
a)
Biased
b)
Unbiased
2.
1.  Carlos wants to know the favorite sport of people at his school so he asks his baseball team.
a)
Biased
b)
Unbiased
3.
4. A company makes DVDs and randomly selects 25 from 1500 to test them to see if they work.
a)
Biased
b)
Unbiased
4.
5. The first 100 people at the park Thursday were asked if dogs should be off leashes in the park.
a)
Biased
b)
Unbiased
5.

Select the best answer: A variable that interferes with other variables in the study is called

a)

Confounding variable

b)

Explanatory variable

c)

Outcome variable

d)

Interfering variable

6.

A teacher at a culinary arts school will conduct an experiment to investigate which of three methods of instruction works best in teaching students how to make a good pie crust. Each student in a group of 60 students will be randomly assigned to one of three methods: in-person demonstration by the instructor, watching a video, and reading a recipe. The students will be assigned so that each method will have 20 students. Each pie crust made will be judged on its taste and texture. What are the treatments of the experiment?

a)

The 60 students

b)

The three methods of instruction

c)

The 20 students within each group

d)

The scores on taste and texture

e)

The 60 pie crusts made

7.

Select the best answer: Every 100th hamburger manufactured is checked to determine its fat content.

a)

random

b)

systematic

c)

stratified

d)

cluster

8.
Political webpages often allow readers to rate whether they strongly agree, agree, disagree, or strongly disagree with the President's decision on any given situation. This is a form of:
a)
Voluntary Response
b)
Convenience Sampling
c)
Simple Random Sampling
d)
Systematic Random Sampling
9.
Interview the first 30 students who enter the school in the morning. 
a)
simple random
b)
voluntary response
c)
systematic
d)
convenience
10.

State the type of sample.


A radio station asks its listeners to call in their opinion regarding the use of American forces in peacekeeping missions.

a)

Voluntary Response Sample

b)

Cluster Sample

c)

Convenience Sample

d)

Stratified Random Sample

11.

State the type of sample.


In order to determine the average IQ of ninth-grade students, a school psychologist obtains a list of all schools in the local public school system. She randomly selects five of these schools and administers an IQ test to all ninth-grade students at the selected schools.

a)

Stratified Random Sample

b)

Cluster Sample

c)

SRS

d)

Random Sample

12.
A ___ is a large group that includes everything being studied.
a)
Sample
b)
Stratified Sampling Method
c)
Population
d)
Voluntary-Response
13.

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 1 block and survey all households on that block.

This is an example of:

a)

Simple Random Sample

b)

Stratified Random Sample

c)

Cluster Random Sample

d)

Systematic Random Sampling

14.

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.

She selects the five closest to her desk.

a)

simple random

b)

Self Selected.

c)

Convenience

d)

Systematic Random

15.

The president of a college randomly selects 2 students from each department to serve on a student advisory board.

a)

Convenience

b)

Systematic

c)

Stratified

d)

Simple Random

16.

A group of lobbyists has a list of 100 senators. They decide to talk to every 7th senator on the list about their position on farm subsidies.

a)

Convenience

b)

Systematic

c)

Stratified

d)

Simple Random

17.

Sporting Illustrated collects data on its readers by asking them to fill out and send in a survey from the June issue.

a)

Convenience

b)

Systematic

c)

Stratified

d)

Simple Random

18.

How many people liked Dramas?

a)

1

b)

2

c)

0

d)

4

19.
Interview the first 30 students who enter the school in the morning. 
a)
simple random
b)
voluntary response
c)
systematic
d)
convenience
20.
Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected. 
a)
systematic
b)
simple random sample
c)
convenience
d)
volunteer response
21.
Political webpages often allow readers to rate whether they strongly agree, agree, disagree, or strongly disagree with the President's decision on any given situation. This is a form of:
a)
Voluntary Response
b)
Convenience Sampling
c)
Simple Random Sampling
d)
Systematic Random Sampling
22.
Marianne wanted to know students' opinion on the new schedule at school. She places students' names in a container and randomly picks out 20 names. 
a)
Convenience Sampling
b)
Systematic Random Sampling
c)
Simple Random Sampling
d)
Volunteer response
23.
Why do we randomly select our samples?
a)
for control
b)
reduce bias
c)
so we don't get the same answers from everyone
d)
to eliminate confounding results
24.
Disneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.
This is a form of:
a)
Simple Random Sample
b)
Stratified Random Sample
c)
Voluntary Response
d)
Systematic Random Sampling
25.
A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She picks the student in every 5th seat.
a)
Simple Random
b)
Systematic Random
c)
voluntary response
d)
convenience
26.

A _________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

a)

Sample

b)

Population

c)

Random Sample

d)

Bias

27.

Leslie surveyed the 20 youngest students in the elementary school. What type of bias is this?

a)

Voluntary Response Bias

b)

Nonresponse Bias

c)

Undercoverage Bias

28.

Volunteers for a politician's campaign called 100 randomly selected citizens to conduct a survey. Only 50 people agreed to answer the survey questions, and most of them were supporters of the candidate. This is an example of...

a)

Voluntary Response Bias

b)

Nonresponse Bias

c)

Undercoverage Bias

29.

Every person has a equal chance of being picked for a survey:

a)

random sample

b)

straw poll

c)

representative sample

d)

push poll

30.

The facts or numbers gathered by a survey

a)

data

b)

sample

c)

population

d)

survey

31.

The characteristic used to describe a sample

a)

parameter

b)

statistic

c)

population

d)

census

32.

The collection of data from every member of a population

a)

parameter

b)

survey

c)

census

d)

sample

33.

A method of collecting information about a certain group of people by asking a question or set of questions

a)

data

b)

census

c)

random sample

d)

survey

34.

A sample that is selected from the population in such a way that every member of the population has the same chance of being selected

a)

random sample

b)

population

c)

statistic

d)

survey

35.

The characteristic used to describe the entire population

a)

statistic

b)

parameter

c)

census

d)

data

36.

The entire set of items (who or what) from which data can be selected

a)

survey

b)

parameter

c)

population

d)

sample

37.

The data collected from part of a population

a)

sample

b)

census

c)

statistic

d)

parameter

38.

Parameter or Statistic?

According to Ms. Carey’s survey of the students in her class, 50% of her students have at least one dog.

a)

Parameter

b)

Statistic

39.

Parameter or Statistic?

A local journal conducted a survey. Of the 1800 subscribers, 1354 responded. Based on the survey, the journal concludes that 75% of subscribers will renew their subscriptions next year.

a)

Parameter

b)

Statistic

40.

What is the the best definition of "Sample?"

a)

The whole group you want to study.

b)

The group you actually study.

c)

Each item in the group.

41.

A survey of 976 American households found that 32% of the households own two cars.  Identify the the sample. {hint: a survey of what __)

a)

All American households

b)

976 American households

c)

32% of Americans own two cars

d)

two cars

42.

A survey of 976 American households found that 32% of the households own two cars.  Identify the the population. {hint: which group was targeted... used for the survey}

a)

All American households

b)

976 American households

c)

32% of Americans own two cars

d)

two cars

43.
In a survey of a sample of high school students, 43% said that their mother has taught them the most about managing money.
a)
parameter
b)
statistic
44.

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first 30 students who come into her class.

a)

Convenience Sampling

b)

Systematic Random Sampling

c)

Simple Random Sampling

d)

Volunteer response

45.
Disneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.
This is a form of:
a)
Simple Random Sample
b)
Stratified Random Sample
c)
Voluntary Response
d)
Systematic Random Sampling
46.

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 1 block and survey all households on that block.

This is an example of:

a)

Simple Random Sample

b)

Stratified Random Sample

c)

Cluster Random Sample

d)

Systematic Random Sampling

47.

A teacher splits her classes up by period. She then randomly picks 3 students from each period to do a survey.

a)

Stratified.

b)

Systematic

c)

Cluster

d)

Biased.

48.

A teacher wants to know how well her students are doing on a topic. She randomly picks one class to survey.

a)

Simple Random

b)

Cluster

c)

Stratified

d)

Systematic

49.
Identify the sampling design: The LFCC registrar wants to investigate attitudes of their graduates.  The registrar randomly selects 100 names from each of the four past graduating classes.
a)
cluster
b)
volunteer
c)
stratified
d)
simple random
50.
How many tally marks?
a)
12
b)
13
c)
15
d)
2
51.

How many hot dogs did Bell E. Ake eat?

a)

11

b)

9

c)

2 1/2

d)

12

52.
Which fruit did most children choose?
a)
apple
b)
banana
c)
grapes
53.
Which subject received the most votes?
a)
science
b)
reading
c)
social studies
d)
math
54.

What is a sample?

a)

A tool used to collect statistical data

b)

Statistics collected from an entire population

c)

The factual information collected from a survey or other source

d)

A subgroup chosen from a population

55.

A scientist studying soil acidity collected soil samples from a plot of land with a stream running through it. The soil samples came from land located on only one side of the stream. What is the potential source of bias that might result from the sampling method?

a)

Voluntary response bias

b)

Undercoverage bias

c)

Nonresponse bias

d)

Response Bias, where responses are self-reported

e)

Response Bias, where the question wording is leading or confusing

56.

Matt wants to investigate the opinions of young adults in the country, ages 18 years to 25 years, about time spent playing video games. He plans to administer a survey to a sample of people. Which of the following samples is most likely to generalize to his population of interest?

a)

A nationwide sample of people ages 18 to 25

b)

A sample of attendees of a gaming convention

c)

A sample of people ages 18 to 25 in Matt’s hometown

d)

A sample of people who click on a link in an online gaming site

e)

A sample of people who buy video games from an online store

57.

A teacher at a culinary arts school will conduct an experiment to investigate which of three methods of instruction works best in teaching students how to make a good pie crust. Each student in a group of 60 students will be randomly assigned to one of three methods: in-person demonstration by the instructor, watching a video, and reading a recipe. The students will be assigned so that each method will have 20 students. Each pie crust made will be judged on its taste and texture. What are the treatments of the experiment?

a)

The 60 students

b)

The three methods of instruction

c)

The 20 students within each group

d)

The scores on taste and texture

e)

The 60 pie crusts made

58.

Kristen is investigating the opinions of students at her high school on the new school hours proposed by the school board. Which of the following is her population of interest?

a)

All members of the school board

b)

All teachers at her school

c)

All students at her high school

d)

All students in the school district

e)

All high school students in the state

59.
Describe the shape of the graph.
a)
Skewed right
b)
Skewed left
c)
Uniform
d)
Symmetrical
60.
Is the Cars dot plot skewed left or right?
a)
left
b)
right
61.
What is the shape of the distribution?
a)
Skewed Left 
b)
Skewed Right
c)
Symmetric
d)
Bimodal
62.

Describe the shape of the distribution.

a)

symmetric

b)

skewed left

c)

skewed right

63.

Describe the shape of the distribution.

a)

symmetric

b)

skewed right

c)

skewed left

64.

Occurs when some members of the population are less likely to be chosen or cannot be chosen in a sample.

a)

placebo effect

b)

response bias

c)

undercoverage

d)

nonresponse

65.

Which color is most likely to be selected?

a)

Green

b)

Blue

c)

Red

d)

Brown

66.

Chosen at random, 580 customers at a car dealership are contacted and asked their opinions of the service they received.
This is what type of sample?

a)

convenience

b)

stratified

c)

simple random sample

d)

cluster

67.

A poll about favorite sports is taken from 100 seniors in a high school where the senior class has 575 students. 23% of respondents said that baseball was their favorite sport.
The "100" is the ______

a)

Sample Size

b)

Population Size

c)

Statistic

d)

Parameter

68.

Identify the sampling technique used: Corn is planted on a 200-acre field. The field is divided into 10-acre subplots. A sample of plants is taken from each subplot to estimate the harvest.

a)

Simple Random

b)

Stratified

c)

Cluster

d)

Systematic

69.

a)

a

b)

b

c)

c

d)

d

e)

e

70.
a)

The graduates who did not respond caused the assumption of independence to be invalid.

b)

The graduates who did not respond changed the survey from a census to a simple random sample of graduates.

c)

The graduates who did not respond reduced the sample size and smaller samples are more biased than large samples.

d)

The graduates who did not respond may represent a group that is homogeneous with respect to income and differs from the graduates who did respond.

e)

The graduates who did not respond may represent a group that is heterogeneous with respect to income and is similar to the graduates who did respond.

71.
To randomly select 25 basketball players from the 300 players in the NBA, I would: 
a)
Number the players from 01-25, read 3 digits at a time from a random table, discarding repeats and numbers over 25, and then stop when I reach 25.
b)
Number the players from 0-299, read 2 digits at a time from a random table, discarding repeats and numbers over 299, and stop when I reach 25.
c)
Number the players from 01-299, read 2 digits at a time from a random table, discarding repeats and numbers over 300, and stop when I reach 25.
d)
Number the players from 001-300, read 3 digits at a time from a random table, discarding repeats, 000 and numbers over 300, and stop when I reach 25.
72.

Every good teacher modifies their teaching techniques from year to year to keep up to 

date with technology and other changing trends. Mr. Quigley is no different and tries to 

implement new strategies each year.  He wants to know what his students think of the new changes so he plans to ask a SRS of 25 of his senior students.  He has a total of 96 senior students in his five classes. 

Beginning at line 120 in the random digits table, which is the 8th student that Mr. Quigley will survey?


a)
16
b)

18

c)

21

d)

65

73.

Every good teacher modifies their teaching techniques from year to year to keep up to date with technology and other changing trends. Mr. Quigley is no different and tries to implement new strategies each year. He wants to know what his students think of the new changes so he plans to ask a SRS of 25 of his senior students. He has a total of 96 senior students in his five classes. Beginning at line 120 in the random digits table, which is the 12th student that Mr. Quigley will survey?

a)
16
b)

42

c)

26

d)

66

74.

To randomly select 25 basketball players from the 300 players in the NBA, I would: 

a)

Number the players from 01-25, read 3 digits at a time from a random table, discarding repeats and numbers over 25, and then stop when I reach 25.

b)

Number the players from 0-299, read 2 digits at a time from a random table, discarding repeats and numbers over 299, and stop when I reach 25.

c)

Number the players from 01-299, read 2 digits at a time from a random table, discarding repeats and numbers over 300, and stop when I reach 25.

d)

Number the players from 001-300, read 3 digits at a time from a random table, discarding repeats, 000 and numbers over 300, and stop when I reach 25.

75.

Every good teacher modifies their teaching techniques from year to year to keep up to date with technology and other changing trends. Mr. Quigley is no different and tries to implement new strategies each year. He wants to know what his students think of the new changes so he plans to ask a SRS of 25 of his senior students. He has a total of 96 senior students in his five classes. Beginning at line 121 in the random digits table, which is the 8th student that Mr. Quigley will survey?

a)

71

b)

16

c)

63

d)

48

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