Chapter 7.1-7.3 Practice
Quiz
•
Mathematics
•
12th Grade
•
Medium
+2
Standards-aligned
Jacob Jagodzinski
Used 3+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chapter 7.1:
You are told that Mr. J is 95% confident that the true mean midterm score lies between 75 and 85. State the margin of error.
10
5
80
160
Tags
CCSS.HSS.IC.B.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chapter 7.1:
Mr. J states with 96% confidence that his estimate of the true average attendance percentage is 87% with a margin of error of 3%. State the confidence interval.
[84%,90%]
[85.5%,88.5%]
[93%,99%]
[87%,96%]
Tags
CCSS.HSS.IC.B.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chapter 7.1:
The Confidence Interval is a range used to help estimate the ________ with a certain level of confidence.
Sample
Statistic
Population
Parameter
Tags
CCSS.HSS.IC.B.4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chapter 7.1:
Dr. Crismon claims that the true mean height of his students, in inches, lies between 64inches and 68inches. What would the point estimate be?
66 inches
64 inches
68 inches
Not enough information
Tags
CCSS.HSS.IC.B.4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chapter 7.1:
True/False: A confidence interval can only be used to help estimate the mean
True
False
Tags
CCSS.HSS.IC.B.4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chapter 7.2:
In order to decrease the range of the confidence interval we need to ___________ our level of confidence.
Increase
Decrease
do nothing to
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chapter 7.2:
In order to decrease our confidence level we can __________ our confidence interval.
Increase
Decrease
do nothing to
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