Estimating with Proportions
Mathematics
9th - 12th Grade
CCSS covered
Used 4+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A random sample of 100 WHS students found that 53 of them were in possession of a pencil. What is the p-hat for this sample?
Tags
CCSS.HSS.IC.B.4
CCSS.HSS.ID.B.5
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A survey of 80 recent fatal traffic accidents showed that 46 were alcohol-related. Find the 98% CI.
Tags
CCSS.HSS.IC.B.4
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If 827 represents "no" voters out of 2584, construct a 95% confidence interval for the "no" group.
Tags
CCSS.HSS.IC.B.4
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A nutritionist found that in a sample of 80 families, 22% said they are apples at least once a week. Construct the 90% CI for the population proportion.
Tags
CCSS.HSS.IC.B.4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following does NOT have an affect on the width of a confidence interval?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following changes to a study would result in a narrower confidence interval?
Tags
CCSS.HSS.IC.B.4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A survey of 280 homeless persons showed that 63 were veterans. Construct a 90% confidence interval for the proportion of homeless persons who are veterans.
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