Confidence Interval for a Mean, Sigma Known
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
Anthony Clark
FREE Resource
Enhance your content
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

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever
or continue with

Microsoft
%20(1).png)
Apple

Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?
Similar Resources on Wayground
10 questions
Ch 1 Introduction (Statistics)Class 11 Economics
Quiz
•
11th - 12th Grade
15 questions
Recursion relations & financial maths
Quiz
•
12th Grade
10 questions
7.2 The Cosine Law
Quiz
•
12th Grade
10 questions
Find derivative and gradient of a tangent
Quiz
•
12th Grade
10 questions
QUIZ 1 - MAT1043
Quiz
•
University
13 questions
activity one derivatives
Quiz
•
12th Grade - University
10 questions
BOOKS OF PRIME ENTRY_ JOURNAL
Quiz
•
9th - 12th Grade
15 questions
Quiz on module-03
Quiz
•
University
Popular Resources on Wayground
20 questions
Brand Labels
Quiz
•
5th - 12th Grade
11 questions
NEASC Extended Advisory
Lesson
•
9th - 12th Grade
10 questions
Ice Breaker Trivia: Food from Around the World
Quiz
•
3rd - 12th Grade
10 questions
Boomer ⚡ Zoomer - Holiday Movies
Quiz
•
KG - University
25 questions
Multiplication Facts
Quiz
•
5th Grade
22 questions
Adding Integers
Quiz
•
6th Grade
10 questions
Multiplication and Division Unknowns
Quiz
•
3rd Grade
20 questions
Multiplying and Dividing Integers
Quiz
•
7th Grade
Discover more resources for Mathematics
15 questions
CCA 2 Ch 3 Review EV #1
Quiz
•
9th - 12th Grade
15 questions
TSI Math Practice Questions
Quiz
•
8th - 12th Grade
20 questions
Complete Geometric Angle Proofs
Quiz
•
9th - 12th Grade
10 questions
Angle Relationships with Parallel Lines and a Transversal
Quiz
•
9th - 12th Grade
29 questions
DUA Review
Quiz
•
9th - 12th Grade
18 questions
083 - Corresponding, Alternate Interior, Alternate Exterior
Quiz
•
9th - 12th Grade
9 questions
Identify Angle Pairs With Parallel Lines And Transversals
Quiz
•
8th - 12th Grade
20 questions
Classify triangles
Quiz
•
9th - 12th Grade