Search Header Logo

Difference of Means Confidence Interval

Authored by Anthony Clark

Mathematics

12th Grade

Difference of Means Confidence Interval
AI

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

    Content View

    Student View

17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If p1 - p2 = 0, is in the 90% confidence interval, what can we conclude at α = 0.10?

Reject H0, there is sufficient evidence to conclude Ha

Reject H0, there is NOT sufficient evidence to conclude Ha

Fail to reject H0, there is sufficient evidence to conclude Ha

Fail to reject H0, there is NOT sufficient evidence to conclude Ha

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A two-tailed hypothesis test with H0: μ12 = 0 produced a p-value of 0.08.  Which of the following must be true?

The 90% confidence interval will NOT contain 0.

The 95% confidence interval will NOT contain 0.

The 99% confidence interval will NOT contain 0.

All the confidence intervals listed will contain 0.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How much faster do people who own sports cars drive on the freeway compared to people who own economy cars.  520 sports cars and 890 economy cars were clocked as they passed by on the freeway. Which procedure is appropriate?

t interval for means

t interval for difference of means

z interval for proportions

z interval for difference of proportions

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How much more time do men spend listening to music compared to women?  52 men and 52 women were surveyed. Which procedure is appropriate?

t interval for difference of means

t test for difference of means

z interval for difference of proportions

z test for difference of proportions

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When road conditions are snowy, how much faster do people who have four wheel drive vehicles drive compared to those who have two wheel drive vehicles? 45 four wheel drive vehicles and 40 two wheel drive vehicles were clocked.

Confidence Interval for a Population Mean

Confidence Interval for a Proportion

Confidence Interval for the Diff. Between 2 Means (Independent Samples)

Confidence Interval for Paired Data (Dependent Samples)

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A child psychologist wants to estimate the mean difference between the number of words children can recall when they hear them and the number of words they can recall when then see them on a written page. Fifty-two children were each read to and asked how many words they recalled and then they were asked to look at a book and asked how many words they recalled.

Confidence Interval for a Population Mean

Confidence Interval for a Proportion

Confidence Interval for the Diff. Between 2 Means (Independent Samples)

Confidence Interval for Paired Data (Dependent Samples)

Confidence Interval for the Difference Between 2 Proportions

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Forty-five LTCC students were asked how much money they spent on textbooks and how much money they spent on tuition. Estimate the mean difference between the average amount of money students spend on books and how much they spend on tuition.

Confidence Interval for a Population Mean

Confidence Interval for a Proportion

Confidence Interval for the Diff. Between 2 Means (Independent Samples)

Confidence Interval for Paired Data (Dependent Samples)

Confidence Interval for the Difference Between 2 Proportions

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?