Population Parameter

Population Parameter

11th Grade

13 Qs

quiz-placeholder

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Population Parameter

Population Parameter

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Hard

Created by

Anthony Clark

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13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following answers is CORRECT for constructing a 98% confidence interval for a difference between two population proportions?

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Suppose a 95% confidence interval for \mu_1-\mu_2 is (-2.13,1.48), what can you conclude?

We are 95% confident that there is no difference between the population means.

We are 95% confident that there is a difference between the population means.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Is there any difference between population variances at 99% level of confidence if the 99% confidence interval (CI) for the ratio of population variance is (0.78, 1.56)? Verify.

No difference because the 99% CI contains 1.

Yes, there is a difference because the 99% CI does not contain 0.

No difference because the upper limit of 99% CI is greater than the lower limit.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A school principal wants to see which subject the 845 students in his school liked best.
Which choice best represents a parameter?

700 of the 845 students prefer math.

100 of the 120 students surveyed prefer math.

845 students

120 students surveyed

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

These symbols represent the mean and standard deviation for which of the following distributions?

The Population

The Sample

The Sampling Distribution

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following choices is CORRECT for a 99% confidence interval for a population proportion when the sample size is large?

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A sample of 400 racing cars showed that 80 cars cost over $700,000. What is the 99% confidence interval of the true proportion of cars costing over $700,000?

0.001 < p < 0.005

0.566 < p < 0.693

0.148 < p < 0.252

0.023 < p < 0.045

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