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U1D3 Collecting Data Jan9

Last updated 7 months ago
30 questions
Note from the author:
1

What does this graph show?

1

Look closely. This graph is intentionally misleading. Shame on them. How is this graph misleading and what can we do to fix it?

1

Re-draw or fix this graph so that it is not misleading.

1

Which histogram does not belong with the other three?

1

From #4, explain your reasoning.
It is the only histogram that is

1

A researcher asks 50 people whether they have visited Arizona.
Identify the method of data collection described in the situation.

1

You flip a coin 4 times and do not get a tails. You suspect this coin favors heads. The coin maker claims that the coin does not favor heads or tails. You use technology to simulate 200 random samples of flipping a coin 50 times. The histogram shows the results. What should you conclude when you flip the actual coin 50 times and get 24 heads?

1
To test a new drug for treating an ailment, a pharmaceutical company divided 100 adult volunteers into two groups, a male group and a female group. One group received the drug and one group received a placebo. After one month, the adults who took the drug were 16% less likely to experience symptoms, while those who took the placebo experienced no significant change.
The study_______ a randomized comparative experiment. ("is", or "is not")
Let's assume the study is a randomized comparative experiment, describe the treatment, the treatment group, and the control group.
The treatment is _______ . (Check the hints for a phrase bank to help fill in the blanks.)
The treatment group is _______ .
The control group is _______ .
A survey claims that 62% of U.S. adults support a presidential candidate. You survey a random sample of 50 adults.
Use the results from the following simulation.



1

What can you conclude about the accuracy of the claim that the population proportion is 0.62 when 29 adults in your survey support the presidential candidate?
The claim is probably ...

1

What can you conclude about the accuracy of the claim that the population proportion is 0.62 when 37 adults in your survey support the presidential candidate?
The claim is probably ...

1

Identify the type of sample described.
A local politician wants to know how people will vote in an upcoming election. The politician conducts telephone surveys and uses only the results from the people who agree to participate.
The type of sample described is a ...

1

Identify the type of sample described.
A ride-sharing company wants to know whether its customers are satisfied with the service. Drivers survey every tenth customer during the day.
The type of sample described is a ...

1

Identify the type of sample described.
Each employee in a company writes his or her name on a card and places it in a hat. The employees whose names are on the first two cards drawn each win a gift card.
The type of sample described is a ...

1

Identify the type of sample described.
The owner of a community pool wants to ask patrons whether they think the water should be colder. Patrons are divided into four age groups, and a sample is randomly surveyed from each age group.
The type of sample described is a ...

1

Identify the type of sample described.
A town council wants to know whether residents support having an off-leash area for dogs in the town park. Eighty dog owners are surveyed at the park.
The type of sample described is a ...

1

From #15,
A town council wants to know whether residents support having an off-leash area for dogs in the town park. Eighty dog owners are surveyed at the park.
Explain why the sample is biased.

1

Determine whether the data is primary or secondary.
You use data from a sample of United States juniors and seniors collected by a research firm to determine the average cost of attending a homecoming dance.

1

Determine whether the data is primary or secondary.
You survey 40 students in your school to determine the percentage of students who plan to attend the football game this Friday.

1

Determine whether the data is primary or secondary.
You work at a local bakery and track sales of muffins on different days of the week to determine the number of muffins to bake each day.

1

Your school principal randomly selects five students from each grade to complete a survey about classroom participation.
Determine whether the sample is biased. Explain your reasoning.

1

A governor wants to know whether voters in the state support building a highway that will pass through a state forest. Business owners in a town near the proposed highway are randomly surveyed.
Determine whether the sample is biased. A governor wants to know whether voters in the state support building a highway that will pass through a state forest. Business owners in a town near the proposed highway are randomly surveyed.
Determine whether the sample is biased. Explain your reasoning.

1

WRITING
The staff of a student newsletter wants to conduct a survey about students' favorite television shows. There are 1225 students in the school. Describe a method for selecting a random sample of 250 students to survey.

1

Identify the method of data collection described in the situation:
A researcher uses technology to estimate the damage that will be done if a volcano erupts.

1

Identify the method of data collection described in the situation:
A store manager records whether customers choose to use the regular checkout or the self-checkout.

1

Identify the method of data collection described in the situation:
A researcher places bacteria samples in two different climates. The researcher then measures the bacteria growth in each sample after 3 days.

1

Explain why the survey question may be biased or otherwise introduce bias into the survey.
"Would you rather watch the latest award-winning movie or just read some book?"

1

Continued from #26
Describe a way to correct the flaw in asking,
"Would you rather watch the latest award-winning movie or just read some book?"

1

Consider each type of sample listed below. Which of the sample types are most likely to introduce bias? Select all that apply.

1

A website contains a link to a survey that asks how much time each person spends on the Internet each week.
What type of sampling method is used in this situation?

1

A company wants to survey its customers to assess the performance of its customer service team. You are in charge of designing the survey. Write three unbiased questions for the survey.