Evaluating Statistical Claims

Evaluating Statistical Claims

11th Grade

10 Qs

quiz-placeholder

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Evaluating Statistical Claims

Evaluating Statistical Claims

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Hard

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main purpose of using a random sample in a survey?

To ensure that the sample is small

To make the results match exactly with the population

To estimate the population's characteristics without surveying everyone

To remove all variability from the data.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the key difference between an observational study and an experiment?

Observational studies manipulate variables, experiments do not

Experiments impose a treatment, observational studies do not

Both studies always prove causation

Observational studies use random sampling, experiments do not.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A biased sample is one that...

Represents the population accurately

Is too small to be useful

Has no errors in data collection

Favors certain outcomes, making results unreliable

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A survey finds that 85% of students like a new lunch menu with a ±3% margin of error, what is the confidence interval?

80% to 90%

82% to 88%

78% to 85%

85% to 100%

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do researchers use a control group in experiments?

To compare results and determine if the treatment caused a change

To ensure all participants get the treatment

To introduce bias into the study

To reduce the sample size

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A company tests a new workout plan by surveying only members of their gym. Why might the results be biased?

Only people interested in fitness are included

The sample is large enough to be reliable

The company used random sampling

The study used a control group.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A researcher records students' study habits and test scores. What type of study is this?

Experiment

Survey

Observational study

Case study

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