Exam 9: Do the Numbers Make Sense

It is thought that 63.7% of the student body owns a school sweatshirt. A student reports that from a simple random sample of 1000 students, 637 own a school sweatshirt.

(Multiple Choice)

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Question 21

A student reports that, of a simple random sample of 200 college undergraduates, 37% were female and 41% were male. We know that the student has made a mistake because

(Multiple Choice)

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Question 22

A student reports that, of a simple random sample of 100 college undergraduates, 54% were female and 49% were male. We know that the student has made a mistake because

(Multiple Choice)

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Question 23

Which of the following statements do you think could possibly be true?

(Multiple Choice)

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Question 24

Dr. Stat's library of literary classics includes issues of certain scholarly periodicals. The total number of issues of four such periodicals, together with the percentages of Dr. Stat's entire library that they comprise, are as follows: Exactly one of the percentages in this table is incorrect. Which is it?

(Multiple Choice)

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Question 25

Showing 21 - 25 of 25

It is thought that 63.7% of the student body owns a school sweatshirt. A student reports that from a simple random sample of 1000 students, 637 own a school sweatshirt.

A student reports that, of a simple random sample of 200 college undergraduates, 37% were female and 41% were male. We know that the student has made a mistake because

A student reports that, of a simple random sample of 100 college undergraduates, 54% were female and 49% were male. We know that the student has made a mistake because

Which of the following statements do you think could possibly be true?

Where Do Data Come From

Samples, Good and Bad

What Do Samples Tell Us

Sample Surveys in the Real World

Experiments, Good and Bad

Experiments in the Real World

Data Ethics

Measuring

Graphs, Good and Bad

Displaying Distributions With Graphs

Normal Distributions

Describing Relationships: Scatterplots and Correlation

Describing Relationships: Regression, Prediction, and Causation

The Consumer Price Index and Government Statistics

Thinking About Chance

Probability Models

Simulation

The House Edge: Expected Values

What Is a Confidence Interval

What Is a Test of Significance

Use and Abuse of Statistical Inference

Two-Way Tables and the Chi-Square Test

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