One Sample Confidence Intervals

One Sample Confidence Intervals

11th - 12th Grade

25 Qs

quiz-placeholder

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One Sample Confidence Intervals

One Sample Confidence Intervals

Assessment

Quiz

Mathematics

11th - 12th Grade

Easy

CCSS
HSS.IC.B.4, HSS.ID.A.4, 6.SP.B.5C

Standards-aligned

Created by

Dennis Murphy

Used 9+ times

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25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 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

5 mins • 1 pt

A large sample has mean of 7.1 and Standard Error of 2.3.


Construct a 90% Confidence Interval for the population mean µ (to two decimal places).

(3.32, 10.88)

(3.8, 7.1)

(3.3, 10.9)

(3.3165, 10.8835)

Tags

CCSS.HSS.IC.B.4

3.

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

4.

MULTIPLE CHOICE QUESTION

2 mins • 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.


Find the critical value.

0.90

1.155

1.645

±1.645

Tags

CCSS.HSS.ID.A.4

5.

MULTIPLE CHOICE QUESTION

3 mins • 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.


Find the Standard Error.

75

10

105.2

1.155

6.

MULTIPLE CHOICE QUESTION

2 mins • 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.


Find the Margin of Error to two decimal places.

1.90

1.89

1.899

1.99

Tags

CCSS.6.SP.B.5C

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The lifetime of a certain type of battery is known to be normally distributed with a standard deviation of 20 hours. A sample of 50 batteries had a mean lifetime of 120.1 hours. It is desired to construct a 99% confidence interval for the mean lifetime of this type of battery.

What is the Confidence Interval to one decimal place?

(114.5, 125.6)

(112.8, 127.4)

(112.82, 127.38)

(114.56, 125.64)

Tags

CCSS.HSS.IC.B.4

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