Designing a Study Answers

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What is the sample?

A
all state households
B
1565 households surveyed
C
1127 households that owned televisions
4

What is the population?

A
all the households in given state
B
1565 households surveyed
C
1127 households that owned televisions
5

What type of sampling method is used?

A
stratified sample
B
simple random sample
C
cluster sample
D
convenience sample
6

What type of sampling is used?

A
cluster
B
convenience
C
simple random
D
stratified
E
systematic
7

Which of these methods is most likely to be biased?

A
cluster
B
systematic
C
simple random
D
stratified
E
convenience
8

Select all sampling methods used.

A
cluster
B
convenience
C
simple random
D
stratified
E
systematic
F
voluntary
9

Why might the method used be biased?

A
Asking every twentieth student does not accurately represent the student population.
B
It is likely that student opinions in one particular high school do not accurately represent the opinions of all high school students.
C
Students that take the time to complete the survey and mail it in probably feel strongly about hot lunches.
10

Identify the sampling method used, and explain why this sample could be biased.

Answer:

The sampling method used is convenience sampling. The sample could be biased because it only includes listeners of that specific radio station at a particular time. Additionally, results might be skewed because people who choose to call into a radio station often have strong opinions about the topic being discussed.

12

Did you include the following in your response?

A
For both methods, divide a population into groups.
B
For cluster sampling, select all of the members in some of the groups.
C
For stratified sampling, select a random sample from each group.
15

What is the population?

A
all the households in given state
B
1565 households surveyed
C
1127 households that owned televisions
16

What type of sampling method is used?stratified sample✔ simple random samplecluster sampleconvenience sample

A
stratified sample
B
✔ simple random sample
C
cluster sample
D
convenience sample
17

What type of sampling is used?

A
cluster
B
convenience
C
simple random
D
stratified
E
systematic
18

Which of these methods is most likely to be biased?

A
cluster
B
systematic
C
simple random
D
stratified
E
convenience
19

Select all sampling methods used.

A
cluster
B
convenience
C
simple random
D
stratified
E
systematic
F
voluntary
20

Why might the method used be biased?

A
Asking every twentieth student does not accurately represent the student population.
B
It is likely that student opinions in one particular high school do not accurately represent the opinions of all high school students.
C
Students that take the time to complete the survey and mail it in probably feel strongly about hot lunches.

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Designing a Study Answers — CR - Algebra 2 26-27…