
Stats Reasoning Confidence Intervals Quiz
Authored by Damarrio Holloway
Mathematics
10th Grade - University
CCSS covered

AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A sample size of n = 64 is drawn from a population whose standard deviation is σ = 5.6.
Find the margin of error for a 99% confidence interval for µ.
1.799
1.798
1.803
Tags
CCSS.HSS.IC.B.4
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The lifetime of a certain type of batter is known to be normally distributed with a standard deviation of 20 hours. A sample of 50 batteries had a mean lifetime of 120.1 hours. It is desired to construct a 99% confidence interval for the mean lifetime of this type of battery.
What is the Confidence Interval to one decimal place?
(114.5, 125.6)
(112.8, 127.4)
(112.82, 127.38)
(114.56, 125.64)
Tags
CCSS.HSS.IC.B.4
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the 95% Confidence Interval for a population mean is (114.56, 125.54), then is it likely that the true population mean µ is greater than 130?
Yes
No
Not enough information
I have no idea what you're asking of me
Tags
CCSS.HSS.IC.B.4
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A population has a standard deviation of σ = 17.3. How large of a sample must be drawn so that a 95% confidence interval for µ will have a Margin of Error equal to 1.4?
586.6
587
586
585
Tags
CCSS.HSS.IC.B.4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
True or False:
The more confident you want to be, the smaller your confidence interval will be.
True
False
Tags
CCSS.HSS.IC.B.4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
True or False:
The larger your confidence interval is, the more sure (higher confidence level) you can be.
True
False
Tags
CCSS.HSS.IC.B.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A recent study of 750 Internet users in Europe found that 35% of Internet users were women. What is the 95% confidence interval of the true proportion of women in Europe who use the Internet?
Tags
CCSS.HSS.IC.B.4
Access all questions and much more by creating a free account
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
Already have an account?