Stats: 6.1 Conf Int SD known
Authored by Holly Breault
Mathematics
9th - 12th Grade
CCSS covered
Used 1+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
12 questions
Show all answers
1.
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
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given the interval (-5 , 13), what is the point estimator (or mean)?
10
9.5
9
-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The 90% interval for a statistics test was given by 72 +- 7. What is the lower bound for the interval?
Tags
CCSS.HSS.IC.B.4
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the margin of error for the interval (6.8, 12.9)?
9.85
3.05
3.50
6.8
Tags
CCSS.HSS.IC.B.4
5.
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
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A 90% confidence interval for the average salary of all CEOs in the electronics industry was constructed using the results of a random survey of 45 CEOs. The interval was ($139,048, $154,144). Give a practical interpretation of the interval.
Tags
CCSS.HSS.IC.B.4
7.
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.
1.672
1.798
1.803
1.594
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 Microsoft
or continue with
%20(1).png)
Apple
Others
Already have an account?
