# A random sample of n = 16 scores is obtained from a population with a mean of μ = 45 . After a treatment is administered to the individuals in the sample, the sample mean is found to be M = 49.2 . a. Assuming that the sample standard deviation is s = 8 , computer r 2 and the estimated Cohen’s d to measure the size of the treatment effect. b. Assuming that the sample standard deviation is s = 20 . computer r 2 and the estimated Cohen’s d to measure the size of the treatment effect. c. Comparing your answers from parts a and b , how does the variability of the scores in the sample influence the measures of effect size?

### Statistics for The Behavioral Scie...

10th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781305504912

### Statistics for The Behavioral Scie...

10th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781305504912

#### Solutions

Chapter
Section
Chapter 9, Problem 18P
Textbook Problem

## Expert Solution

### Want to see the full answer?

Check out a sample textbook solution.See solution

### Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

See Solution

*Response times vary by subject and question complexity. Median response time is 34 minutes and may be longer for new subjects.

Find more solutions based on key concepts
Show solutions
59-67 Evaluate the integral. sech2x2+tanhxdx

Calculus (MindTap Course List)

In Exercises 69-74, rationalize the numerator. 74. x2y32x

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

Evaluate each expression: (3918)(2318)

Elementary Technical Mathematics

Solve each equation for if 0360. sin+cos=1

Trigonometry (MindTap Course List)

limx0+(1+x)1/x= a) e b) e c) 1e d) 1e

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

Graph each polynomial function. f(x)=x3x

College Algebra (MindTap Course List)

Special Rounding Instructions When you perform logistic regression, round the r value to three decimal places a...

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

Sales Experience and Sales Performance. In exercise 7 a sales manager collected the following data on x = annua...

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

In Problems 43 and 44 we saw that every autonomous first-order differential equation dy/dx = f(y) is separable....

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