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Mathematics

9th - 12th Grade

CCSS covered

Used 10+ times

Confidence Intervals and Point Estimation
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18 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following changes to a study would result in a narrower confidence interval?

increasing the confidence level, increasing the sample size
decreasing the confidence level, decreasing the sample size
increasing the confidence level, decreasing the sample size
decreasing the confidence level, increasing the sample size.

Tags

CCSS.HSS.IC.B.4

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the point estimator for the interval (-5 , 13)?

10

9.5

9

-5

Tags

CCSS.HSS.IC.B.4

CCSS.HSS.MD.A.2

CCSS.HSS.MD.A.3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The point estimate is the ______ of the interval.

middle

side

standard deviation

margin of error

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

As more samples are added.......

We get farther from the confidence interval

Nothing Happens

We get closer to the confidence interval

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

As the confidence level decreases, what happens to the interval width?

Stays the same

Gets narrower

Gets Wider

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

As the confidence level increases, what happens to the interval width?

Stays the same

Gets narrower

Gets Wider

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Margin of error decreases when....

Select All that apply

increase sample size

decrease confidence level

decrease sample size

increase confidence level

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