The correct reason for given statement.

Question

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Answer 1

Question

Chapter 20, Problem 20.17CYS

To determine

To identify: The correct reason for given statement.

Expert Solution & Answer

Answer to Problem 20.17CYS

Option (b)

Explanation of Solution

Reason for the correct option:

Prefer the t procedures to the z procedures for inference about a population mean because z procedures require that the population standard deviation is known but the t procedures are not required.

Reason for the incorrect answer:

For both test procedures, the data or observations considered as simple random sample from the population and the observations are from a normal population. Therefore,

Option (a) and Option (c) are incorrect.

Therefore, the correct option is (b), “z requires that you know the population standard deviation σ ”.

Statistics Concept Introduction

Introduction:

Conditions for inference about a one-sample t test:

Simple random sample from the population.
Observations are from a normal population.

Conditions for inference about a one-sample z test:

Simple random sample from the population.
Observations are from a normal population.
Population standard deviation is known.

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Students have asked these similar questions

29 Suppose that a mound-shaped data set has a must mean of 10 and standard deviation of 2. a. About what percentage of the data should lie between 6 and 12? b. About what percentage of the data should lie between 4 and 6? c. About what percentage of the data should lie below 4? 91002 175/1 3

2,3, ample and rical t? the 28 Suppose that a mound-shaped data set has a mean of 10 and standard deviation of 2. a. About what percentage of the data should lie between 8 and 12? b. About what percentage of the data should lie above 10? c. About what percentage of the data should lie above 12?

27 Suppose that you have a data set of 1, 2, 2, 3, 3, 3, 4, 4, 5, and you assume that this sample represents a population. The mean is 3 and g the standard deviation is 1.225.10 a. Explain why you can apply the empirical rule to this data set. b. Where would "most of the values" in the population fall, based on this data set?

Answer 2

Question

Chapter 20, Problem 20.17CYS

To determine

To identify: The correct reason for given statement.

Expert Solution & Answer

Answer to Problem 20.17CYS

Option (b)

Explanation of Solution

Reason for the correct option:

Prefer the t procedures to the z procedures for inference about a population mean because z procedures require that the population standard deviation is known but the t procedures are not required.

Reason for the incorrect answer:

For both test procedures, the data or observations considered as simple random sample from the population and the observations are from a normal population. Therefore,

Option (a) and Option (c) are incorrect.

Therefore, the correct option is (b), “z requires that you know the population standard deviation σ ”.

Statistics Concept Introduction

Introduction:

Conditions for inference about a one-sample t test:

Simple random sample from the population.
Observations are from a normal population.

Conditions for inference about a one-sample z test:

Simple random sample from the population.
Observations are from a normal population.
Population standard deviation is known.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 20, Problem 20.17CYS

To determine

To identify: The correct reason for given statement.

Expert Solution & Answer

Answer to Problem 20.17CYS

Option (b)

Explanation of Solution

Reason for the correct option:

Prefer the t procedures to the z procedures for inference about a population mean because z procedures require that the population standard deviation is known but the t procedures are not required.

Reason for the incorrect answer:

For both test procedures, the data or observations considered as simple random sample from the population and the observations are from a normal population. Therefore,

Option (a) and Option (c) are incorrect.

Therefore, the correct option is (b), “z requires that you know the population standard deviation σ ”.

Statistics Concept Introduction

Introduction:

Conditions for inference about a one-sample t test:

Simple random sample from the population.
Observations are from a normal population.

Conditions for inference about a one-sample z test:

Simple random sample from the population.
Observations are from a normal population.
Population standard deviation is known.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 20, Problem 20.17CYS

To determine

To identify: The correct reason for given statement.

Expert Solution & Answer

Answer to Problem 20.17CYS

Option (b)

Explanation of Solution

Reason for the correct option:

Prefer the t procedures to the z procedures for inference about a population mean because z procedures require that the population standard deviation is known but the t procedures are not required.

Reason for the incorrect answer:

For both test procedures, the data or observations considered as simple random sample from the population and the observations are from a normal population. Therefore,

Option (a) and Option (c) are incorrect.

Therefore, the correct option is (b), “z requires that you know the population standard deviation σ ”.

Statistics Concept Introduction

Introduction:

Conditions for inference about a one-sample t test:

Simple random sample from the population.
Observations are from a normal population.

Conditions for inference about a one-sample z test:

Simple random sample from the population.
Observations are from a normal population.
Population standard deviation is known.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 20, Problem 20.17CYS

To determine

To identify: The correct reason for given statement.

Expert Solution & Answer

Answer to Problem 20.17CYS

Option (b)

Explanation of Solution

Reason for the correct option:

Prefer the t procedures to the z procedures for inference about a population mean because z procedures require that the population standard deviation is known but the t procedures are not required.

Reason for the incorrect answer:

For both test procedures, the data or observations considered as simple random sample from the population and the observations are from a normal population. Therefore,

Option (a) and Option (c) are incorrect.

Therefore, the correct option is (b), “z requires that you know the population standard deviation σ ”.

Statistics Concept Introduction

Introduction:

Conditions for inference about a one-sample t test:

Simple random sample from the population.
Observations are from a normal population.

Conditions for inference about a one-sample z test:

Simple random sample from the population.
Observations are from a normal population.
Population standard deviation is known.

Answer 6

Chapter 20, Problem 20.17CYS

To determine

To identify: The correct reason for given statement.

Expert Solution & Answer

Answer to Problem 20.17CYS

Option (b)

Explanation of Solution

Reason for the correct option:

Prefer the t procedures to the z procedures for inference about a population mean because z procedures require that the population standard deviation is known but the t procedures are not required.

Reason for the incorrect answer:

For both test procedures, the data or observations considered as simple random sample from the population and the observations are from a normal population. Therefore,

Option (a) and Option (c) are incorrect.

Therefore, the correct option is (b), “z requires that you know the population standard deviation σ ”.

Statistics Concept Introduction

Introduction:

Conditions for inference about a one-sample t test:

Simple random sample from the population.
Observations are from a normal population.

Conditions for inference about a one-sample z test:

Simple random sample from the population.
Observations are from a normal population.
Population standard deviation is known.

Answer 7

Chapter 20, Problem 20.17CYS

To determine

To identify: The correct reason for given statement.

Answer 8

Expert Solution & Answer

Answer to Problem 20.17CYS

Option (b)

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Reason for the correct option:

Prefer the t procedures to the z procedures for inference about a population mean because z procedures require that the population standard deviation is known but the t procedures are not required.

Reason for the incorrect answer:

For both test procedures, the data or observations considered as simple random sample from the population and the observations are from a normal population. Therefore,

Option (a) and Option (c) are incorrect.

Therefore, the correct option is (b), “z requires that you know the population standard deviation σ ”.