Confidence Interval for a Mean, Sigma Known

Confidence Interval for a Mean, Sigma Known

12th Grade

10 Qs

quiz-placeholder

Similar activities

T1C8 GARIS DAN SUDUT

T1C8 GARIS DAN SUDUT

9th - 12th Grade

10 Qs

Math - Practice 3 WMSU

Math - Practice 3 WMSU

12th Grade

12 Qs

5.6 Angle Bisector and Perpendicular Bisectors  part 1 Cw

5.6 Angle Bisector and Perpendicular Bisectors part 1 Cw

10th - 12th Grade

9 Qs

VCFT-CAT 1-MCQ

VCFT-CAT 1-MCQ

University

10 Qs

PRELIMS IN STATISTICS

PRELIMS IN STATISTICS

11th - 12th Grade

15 Qs

Unit 5 Test Review

Unit 5 Test Review

9th - 12th Grade

15 Qs

12AASL Chapter 9 + Chapter 20A

12AASL Chapter 9 + Chapter 20A

11th - 12th Grade

14 Qs

commission, brokerage & discount

commission, brokerage & discount

12th Grade - University

11 Qs

Confidence Interval for a Mean, Sigma Known

Confidence Interval for a Mean, Sigma Known

Assessment

Quiz

Mathematics

12th Grade

Practice Problem

Hard

Created by

Anthony Clark

FREE Resource

AI

Enhance your content

Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the original x distribution has a relatively small standard deviation, the confidence interval for the population mean will be relatively short.

True

False

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

For the same random sample, when the confidence level c is reduced, the confidence interval for the mean becomes shorter.

True

False

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The value zc is a value from the standard normal distribution such that P(-zc<x<zc)=c.

True

False

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Consider a random sample of size n from an x distribution. For such a sample, the margin of error for estimating the population mean is the magnitude of the difference between x-bar and mu.

True

False

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Suppose x has a mound-shaped distribution with sigma=9. A random sample of size 36 has sample mean 20. Is it appropriate to use a normal distribution to compute the confidence interval?

Yes

No

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Overproduction of uric acid in the body can be an indication of cell breakdown. This may be an advance indication of illness such as gout, leukemia, or lymphoma. Over a period of months, an adult male patient has taken eight blood tests for uric acid, which had the mean concentration of 5.3 mg/dl. The distribution of uric acid in healthy adult males can be assumed to be normal with a standard deviation of 1.85 mg/dl. The level of confidence sis 95%. What is the margin of error E?

4.07 mg/dl

1.82 mg/dl

1.48 mg/dl

1.28 mg/dl

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Suppose an archaeologist discovers seven fossil skeletons from a previously unknown species of miniature horse. Reconstructions of the skeletons of these seven miniature horses show the shoulder heights (in centimeters) to be 45.3, 47.1, 44.2, 46.8, 46.5, 45.5, 47.6 Assume that the population of shoulder heights is approximately normal. Find the 99% confidence interval for the mean of the shoulder heights of the entire population of such horses.

(45.4 cm, 48.7 cm)

(46 cm, 48 cm)

(45 cm, 48 cm)

(44.5 cm, 47.8 cm)

Create a free account and access millions of resources

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

By signing up, you agree to our Terms of Service & Privacy Policy

Already have an account?