Confidence Interval Test Corrections
Quiz
•
Mathematics
•
9th - 12th Grade
•
Hard
Standards-aligned
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13 questions
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1.
MATH RESPONSE QUESTION
2 mins • 1 pt
Sarah made a 95% confidence interval for the average age of students at her gym, (3.67, 10.43). What is the point estimate?
Mathematical Equivalence
ON
Tags
CCSS.HSS.IC.B.4
2.
MATCH QUESTION
30 sec • 1 pt
Match the following intervals with their Margin of Errors
.015
(.45, .48)
.15
(.72, .84)
.30
(.14, .74)
.06
(.32, .62)
.03
(.56, .62)
Tags
CCSS.HSS.IC.B.4
3.
MATH RESPONSE QUESTION
2 mins • 1 pt
Sarah made a 95% confidence interval for the average age of students at her gym, (3.67, 10.43). What is the margin of error?
Mathematical Equivalence
ON
Tags
CCSS.HSS.IC.B.4
4.
DRAG AND DROP QUESTION
1 min • 1 pt
To decrease the size of the confidence interval we (a) the confidence level and (b) sample size
5.
MATH RESPONSE QUESTION
2 mins • 1 pt
Lucy sampled 60 people and found that the average age was 15 with a standard deviation of 2.4. What is the lower bound of a 95% confidence interval?
Mathematical Equivalence
ON
Tags
CCSS.HSS.IC.B.4
6.
MATH RESPONSE QUESTION
2 mins • 1 pt
Lucy sampled 60 people and found that the average age was 15 with a standard deviation of 2.4. What is the upper bound of a 95% confidence interval?
Mathematical Equivalence
ON
Tags
CCSS.HSS.IC.B.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is the definition of a "point estimate?"
The midpoint of the confidence interval
The sample size
The population
The standard deviation
Tags
CCSS.HSS.IC.B.4
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