CONFIDENCE INTERVAL (T6)

CONFIDENCE INTERVAL (T6)

12th Grade

20 Qs

quiz-placeholder

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CONFIDENCE INTERVAL (T6)

CONFIDENCE INTERVAL (T6)

Assessment

Quiz

Mathematics

12th Grade

Medium

CCSS
HSS.IC.B.4, HSS.ID.A.4

Standards-aligned

Created by

Siti Nubailah

Used 1+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A sample size of n = 64 is drawn from a population whose standard deviation is σ = 5.6.


Find the margin of error for a 99% confidence interval for µ.

1.799

1.798

1.803

Tags

CCSS.HSS.IC.B.4

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An IQ test was given to a simple random sample of 75 students at a certain college. The sample mean score was 105.2. Scores on this test are known to have a standard deviation of 10. It is desired to construct a 90% confidence interval for the mean IQ scores of the students at the college.


What is the point estimate?

75

105.2

10

0.90

Tags

CCSS.HSS.IC.B.4

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the 95% Confidence Interval for a population mean is (114.56, 125.54), then is it likely that the true population mean µ is greater than 130?

Yes

No

Not enough information

I have no idea what you're asking of me

Tags

CCSS.HSS.IC.B.4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Given the Critical Value of Z = 2.11, find the Confidence Level.

96.52%

0.9652

0.9826

98.26%

Tags

CCSS.HSS.ID.A.4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

True or False:


The more confident you want to be, the smaller your confidence interval will be.

True

False

Tags

CCSS.HSS.IC.B.4

6.

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

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the margin of error for the interval (6.8, 12.9)?

3.05

9.85

5.83

8.41

Tags

CCSS.HSS.IC.B.4

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