
Confidence Intervals and Margin of Error

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Jackson Turner
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the average amount of money spent on music per month by the sample of teenagers?
$65.25
$69.75
$60.75
$70.00
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the margin of error help to estimate?
The exact population parameter
The accuracy of a sample statistic
The sample size
The bias in the sample
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of data is found within two standard deviations of the mean in a normal distribution?
100%
95%
68%
99.7%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a 95% confidence level indicate?
95% of all samples will capture the population parameter
The sample size is 95
The interval captures the population parameter 100% of the time
The margin of error is 95
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between confidence level and margin of error?
Confidence level does not affect margin of error
Higher confidence level requires a larger margin of error
Higher confidence level requires a smaller margin of error
Margin of error is always constant
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in constructing a confidence interval?
Calculate the margin of error
Identify the parameter to be estimated
Interpret the interval
Choose a confidence level
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the basketball fans example, what is the confidence interval for the average hours watched?
67 to 83 hours
60 to 80 hours
70 to 90 hours
65 to 85 hours
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