Search Header Logo

Inference Test for Means AP Statistics

Authored by Anthony Clark

Mathematics

12th Grade

Used 1+ times

Inference Test for Means AP Statistics
AI

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

    Content View

    Student View

18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What test should be used?

2 proportion z test

1 proportion z test

2 sample t test for means

1 sample t test for mean

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Media Image

What test should be performed?

Paired t test

1 sample t test for mean difference

2 proportion z test

2 sample t test for difference in means

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

To test a claim about a mean, when the population standard deviation is unknown we use:

z procedures

Pythagorean Theorem

t procedures

np > 10 and n(1-p) > 10

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

You have an SRS of 23 observations from large population. The distribution of sample values is roughly symmetric with no outliers. What critical value would you use to obtain a 98% confidence interval for the mean of the population?

2.177

2.183

2.326

2.500

2.508

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A quality control inspector will measure the salt content (in milligrams) in a random sample of bags of potato chips from an hour of production. Which of the following would result in the smallest margin of error in estimating the mean salt content σ ?

90% confidence; n = 25 

90% confidence; n = 50 

95% confidence; n =25 

95% confidence; n =50 

n=100 at any confidence level 

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Scientists collect data on the blood cholesterol levels (milligrams per deciliter of blood) of a random sample of 25 laboratory rats. A 95% confidence interval for the mean blood cholesterol level μ is 80.2 to 89.8. Which of the following would cause the most worry about the validity of this interval?

There is a clear outlier in the data

A stemplot of the data shows a mild right skew

You do not know the population standard deviation σ

The population distribution is not exactly Normal.

None of these are a problem when using t-interval

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What interval should be used?

2 Sample t interval for means

Paired t interval

Paired t test

1 proportion z interval

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?