BuyFind

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781133956570
BuyFind

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781133956570

Solutions

Chapter
Section
Chapter 8, Problem 18P
Textbook Problem

Briefly explain how increasing sample size influences each of the following. Assume that all other factors are held constant.

a. The size of the z-score in a hypothesis test

b. The size of Cohen’s d.

c. The power of a hypothesis test

Expert Solution

a.

To determine
The effect of increasing the sample size on a z-score in hypothesis test.

Explanation of Solution

Given info:

The sample size increases.

Justification:

If the z-score is increases then that means there is a significant effect and reject the null hypothesis. The z-score is calculated as:

z=MμσM

Where σM is known as standard error and calculated as

σM=σn

Expert Solution

b.

To determine
The effect of increasing the sample size on the size of Cohen’s d.

Expert Solution

c.

To determine
Whether the power of a hypothesis test influenced with the increase in sample size.

Want to see this answer and more?

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

See solution

Chapter 8 Solutions

Essentials of Statistics for the Behavioral Sciences
Show all chapter solutions
Ch. 8.2 - If a sample mean is in the critical region with =...Ch. 8.3 - A researcher conducts a hypothesis test with =...Ch. 8.3 - In a research report, the term significant is used...Ch. 8.3 - In a research report, the results of hypothesis...Ch. 8.3 - If other factors are held constant, increasing the...Ch. 8.3 - If other factors are held constant, are you more...Ch. 8.4 - A researcher selects a sample from a population...Ch. 8.4 - If a sample is sufficient to reject the null...Ch. 8.4 - A researcher obtains z = 2.43 for a hypothesis...Ch. 8.5 - Explain how increasing the sample size influences...Ch. 8.5 - A researcher selects a sample from a population...Ch. 8.5 - A researcher selects a sample from a population...Ch. 8.6 - As the power of a test increase, what happens to...Ch. 8.6 - For a 5-point treatment effect, a researcher...Ch. 8.6 - How does sample size influence the power of a...Ch. 8.6 - A researcher administers a treatment to a sample...Ch. 8 - The value of the z-score in a hypothesis test is...Ch. 8 - Define the alpha level and the critical region,...Ch. 8 - Although there is a popular belief that herbal...Ch. 8 - Childhood participation in sports, cultural...Ch. 8 - A local college requires an English composition...Ch. 8 - A random simple is selected from a normal...Ch. 8 - A random sample of n = 25 scores is selected from...Ch. 8 - Brunt, Rhee, and Zhong (2008) surveyed 557...Ch. 8 - A random simple is selected from a normal...Ch. 8 - In a study examining the effect of alcohol on...Ch. 8 - The researchers cited in the previous problem...Ch. 8 - There is some evidence indicating that people with...Ch. 8 - Researchers at a National Weather Center in the...Ch. 8 - Montarello and Martens (2005) found that...Ch. 8 - Researchers hate noted a decline in cognitive...Ch. 8 - A researcher plans to conduct an experiment...Ch. 8 - A sample of n = 40 is selected from a normal...Ch. 8 - Briefly explain how increasing sample size...Ch. 8 - Explain how the power of a hypothesis test is...Ch. 8 - A researcher is investigating the effectiveness of...Ch. 8 - A researcher is evaluating the influence of a...Ch. 8 - Find each of the requested values for a population...Ch. 8 - A survey of high school seniors shows that the...Ch. 8 - Miller (2008) examined the energy drink...

Additional Math Textbook Solutions

Find more solutions based on key concepts
Show solutions
Find the limit. limx12x2x45+x3x4

Single Variable Calculus: Early Transcendentals, Volume I

Evaluate the indefinite integral. x1+x4dx

Calculus: Early Transcendentals

Think About It Explain why In ex=x.

Calculus: Early Transcendental Functions

In Exercises 1-6, match the statement with one of the graphs (a)(f). 3. The slope of the line is positive, and ...

Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach

45. Find the area between the curve and the x-axis from x = 1 to x = 3.

Mathematical Applications for the Management, Life, and Social Sciences

Express each number in terms of j: 16

Elementary Technical Mathematics

Which is true about the series ? diverges converges absolutely converges conditionally converges, but not absol...

Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th

For , f′(x) =

Study Guide for Stewart's Multivariable Calculus, 8th

What is the primary advantage of self-report measures? What is the primary disadvantage?

Research Methods for the Behavioral Sciences (MindTap Course List)

The following results are for independent random samples taken from two populations. What is the point estimat...

Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)

In Problems 126 solve the given differential equation by undetermined coefficients. 7. y + 3y = 48x2e3x

A First Course in Differential Equations with Modeling Applications (MindTap Course List)

3.4 SKILL BUILDING EXERCISES Correlation Coefficient The correlation coefficient r is a measure of how well a r...

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)