Confidence Intervals
Flashcard
•
Mathematics
•
11th - 12th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a confidence interval?
Back
A confidence interval is a range of values, derived from a data set, that is likely to contain the value of an unknown population parameter, with a certain level of confidence.
Tags
CCSS.HSS.IC.B.4
2.
FLASHCARD QUESTION
Front
What does a 99% confidence level indicate?
Back
A 99% confidence level indicates that if we were to take 100 different samples and compute a confidence interval for each sample, approximately 99 of the intervals would contain the population mean.
Tags
CCSS.HSS.IC.B.4
3.
FLASHCARD QUESTION
Front
What is the z-value for a 95% confidence level?
Back
The z-value for a 95% confidence level is approximately 1.96.
Tags
CCSS.HSS.ID.A.4
4.
FLASHCARD QUESTION
Front
How do you calculate the margin of error in a confidence interval?
Back
The margin of error is calculated by multiplying the z-value by the standard error of the sample.
Tags
CCSS.HSS.IC.B.4
5.
FLASHCARD QUESTION
Front
What is the formula for a confidence interval for a population mean?
Back
The formula is: Confidence Interval = sample mean ± (z-value * standard error).
Tags
CCSS.HSS.IC.B.4
6.
FLASHCARD QUESTION
Front
What does the symbol 'n' represent in statistics?
Back
The symbol 'n' represents the sample size.
Tags
CCSS.6.SP.B.5A
7.
FLASHCARD QUESTION
Front
What is the difference between a population and a sample?
Back
A population includes all members of a specified group, while a sample is a subset of the population used to represent the group.
Tags
CCSS.7.SP.A.1
CCSS.HSS.IC.A.1
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