Confidence Intervals
Flashcard
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
Standards-aligned
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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 sample, that is likely to contain the population parameter with a specified level of confidence.
Tags
CCSS.HSS.IC.B.4
2.
FLASHCARD QUESTION
Front
What does the critical value represent in a confidence interval?
Back
The critical value is a factor used to calculate the margin of error, which determines the width of the confidence interval.
Tags
CCSS.HSS.IC.B.4
3.
FLASHCARD QUESTION
Front
How does sample size affect the width of a confidence interval?
Back
Increasing the sample size generally results in a narrower confidence interval, as it reduces the standard error.
4.
FLASHCARD QUESTION
Front
What is the margin of error in the context of confidence intervals?
Back
The margin of error is the amount added and subtracted from the sample statistic to create the confidence interval.
Tags
CCSS.HSS.IC.B.4
5.
FLASHCARD QUESTION
Front
What is a point estimate?
Back
A point estimate is a single value estimate of a population parameter, often represented by the sample mean.
6.
FLASHCARD QUESTION
Front
Which factors affect the width of a confidence interval?
Back
The width of a confidence interval is affected by the standard deviation, sample size, and critical value.
Tags
CCSS.HSS.IC.B.4
7.
FLASHCARD QUESTION
Front
What happens to the confidence interval when the confidence level is decreased?
Back
Decreasing the confidence level results in a narrower confidence interval.
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