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Inference Procedures

Authored by Tyler Ortiz

Mathematics

11th - 12th Grade

Used 1+ times

Inference Procedures
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19 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A teacher compares the scores of students in her class on a standardized test with the national average score of 87.3.

Paired t-test

2-sample t-test

t-test

1-prop z-test

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A teacher compares the proportion of her students who scored 5’s on the AP exam with the national proportion of 5’s which is 0.124.

Paired t-test

2-sample t-test

t-test

1-prop z-test

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A psychology teacher gives students 10 min. to memorize a list of 20 nonsense words. The students are asked to recall the words one hour later and then 24 hours later. Is there evidence to suggest that the mean number of words recalled after 1 hour exceeds the mean recall after 24 hours?

Paired t-test

2-sample t-test

X2 -GOF Test

t-test

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The mean length of long-distance telephone calls placed with a particular phone company was known to be 7.3 minutes under an old rate structure. The company lowered its rates hoping that customers would be encouraged to make longer calls, so there would not be a big loss in revenue. Is

there evidence that lowering the rates was successful?

Paired t-test

2-sample t-test

X2 -GOF Test

t-test

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A researcher wants to know if there is an association between type of exercise (jogging, cycling, swimming, weight lifting) and age among male adults.

Paired t-test

2-sample t-test

X2 -GOF Test

X2 Test

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A teacher compares the number of A’s, B’s, C’s, D’s, and F’s in their statistics class to last year.

Paired t-test

2-sample t-test

X2 -GOF Test

X2 Test

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Failing to reject a null hypothesis that is false can be characterized as

a Type I error
a Type II error
both a Type I and Type II error
no error

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