State the limitation of the z test and name an alternative to the z test that does not have any limitation.

Question

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Answer 1

Question

Chapter 9, Problem 1FP

To determine

State the limitation of the z test and name an alternative to the z test that does not have any limitation.

Expert Solution & Answer

Answer to Problem 1FP

The limitation of the z test is that population variance should be known.

The t test is used as an alternative for z test that does not have any limitation.

Explanation of Solution

Justification: The main limitation of the z test is that the population variance should be known. If there is not information about the population variance the z test cannot be used.

The t test is similar to the z test. In t test sample variance is replaced with population variance for estimating the standard error. When the population standard deviation is not known t test is used in place of z test.

Hence, the t test is used as an alternative for z test when the population variance is unknown.

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Answer 2

Question

Chapter 9, Problem 1FP

To determine

State the limitation of the z test and name an alternative to the z test that does not have any limitation.

Expert Solution & Answer

Answer to Problem 1FP

The limitation of the z test is that population variance should be known.

The t test is used as an alternative for z test that does not have any limitation.

Explanation of Solution

Justification: The main limitation of the z test is that the population variance should be known. If there is not information about the population variance the z test cannot be used.

The t test is similar to the z test. In t test sample variance is replaced with population variance for estimating the standard error. When the population standard deviation is not known t test is used in place of z test.

Hence, the t test is used as an alternative for z test when the population variance is unknown.

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Answer 3

Question

Chapter 9, Problem 1FP

To determine

State the limitation of the z test and name an alternative to the z test that does not have any limitation.

Expert Solution & Answer

Answer to Problem 1FP

The limitation of the z test is that population variance should be known.

The t test is used as an alternative for z test that does not have any limitation.

Explanation of Solution

Justification: The main limitation of the z test is that the population variance should be known. If there is not information about the population variance the z test cannot be used.

The t test is similar to the z test. In t test sample variance is replaced with population variance for estimating the standard error. When the population standard deviation is not known t test is used in place of z test.

Hence, the t test is used as an alternative for z test when the population variance is unknown.

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Answer 4

Question

Chapter 9, Problem 1FP

To determine

State the limitation of the z test and name an alternative to the z test that does not have any limitation.

Expert Solution & Answer

Answer to Problem 1FP

The limitation of the z test is that population variance should be known.

The t test is used as an alternative for z test that does not have any limitation.

Explanation of Solution

Justification: The main limitation of the z test is that the population variance should be known. If there is not information about the population variance the z test cannot be used.

The t test is similar to the z test. In t test sample variance is replaced with population variance for estimating the standard error. When the population standard deviation is not known t test is used in place of z test.

Hence, the t test is used as an alternative for z test when the population variance is unknown.

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Answer 5

Chapter 9, Problem 1FP

To determine

State the limitation of the z test and name an alternative to the z test that does not have any limitation.

Expert Solution & Answer

Answer to Problem 1FP

The limitation of the z test is that population variance should be known.

The t test is used as an alternative for z test that does not have any limitation.

Explanation of Solution

Justification: The main limitation of the z test is that the population variance should be known. If there is not information about the population variance the z test cannot be used.

The t test is similar to the z test. In t test sample variance is replaced with population variance for estimating the standard error. When the population standard deviation is not known t test is used in place of z test.

Hence, the t test is used as an alternative for z test when the population variance is unknown.

Answer 6

Chapter 9, Problem 1FP

To determine

State the limitation of the z test and name an alternative to the z test that does not have any limitation.

Expert Solution & Answer

Answer to Problem 1FP

The limitation of the z test is that population variance should be known.

The t test is used as an alternative for z test that does not have any limitation.

Explanation of Solution

Justification: The main limitation of the z test is that the population variance should be known. If there is not information about the population variance the z test cannot be used.

The t test is similar to the z test. In t test sample variance is replaced with population variance for estimating the standard error. When the population standard deviation is not known t test is used in place of z test.

Hence, the t test is used as an alternative for z test when the population variance is unknown.

Answer 7

Chapter 9, Problem 1FP

To determine

State the limitation of the z test and name an alternative to the z test that does not have any limitation.

Answer 8

Expert Solution & Answer

Answer to Problem 1FP

The limitation of the z test is that population variance should be known.

The t test is used as an alternative for z test that does not have any limitation.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Justification: The main limitation of the z test is that the population variance should be known. If there is not information about the population variance the z test cannot be used.

The t test is similar to the z test. In t test sample variance is replaced with population variance for estimating the standard error. When the population standard deviation is not known t test is used in place of z test.

Hence, the t test is used as an alternative for z test when the population variance is unknown.

Answer 12

Ch. 9.3 - Prob. 1.1LC Ch. 9.3 - Prob. 1.2LC Ch. 9.3 - Prob. 1.3LC Ch. 9.3 - Prob. 1.4LC Ch. 9.3 - Prob. 1.5LC Ch. 9.3 - Prob. 1.6LC Ch. 9.4 - Prob. 2.1LC Ch. 9.4 - Prob. 2.2LC Ch. 9.4 - Prob. 2.3LC Ch. 9.5 - Prob. 3.1LC

State the limitation of the z test and name an alternative to the z test that does not have any limitation.

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State the limitation of the z test and name an alternative to the z test that does not have any limitation.

Answer to Problem 1FP

Explanation of Solution

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Chapter 9 Solutions