# A random simple is selected from a normal population with a mean of μ = 30 and a standard deviation of σ = 8. After a treatment is administered to the individuals in the sample, the sample mean is found to be M = 33. a. If the sample consists of n = 16 scores, is the sample mean sufficient to conclude that the treatment has a significant effect? Use a two-tailed test with α = .05. b. If the sample consists of n = 64 scores, is the sample mean sufficient effect? Use a two-tailed test with α = .05. c. Comparing your answers for parts a and b, explain how the size of the sample influences the outcome of a hypothesis test.

### Essentials of Statistics for the B...

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

### Essentials of Statistics for the B...

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

#### Solutions

Chapter
Section
Chapter 8, Problem 6P
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
Minimize Subject to C=4x+2y+6z x+2y+z42x+y+2z23x+2y+z3x0,y0,z0

Finite Mathematics for the Managerial, Life, and Social Sciences

Use Exercise 51 to find (lnx)3dx.

Single Variable Calculus: Early Transcendentals

Evaluate the expression sin Exercises 116. (14)2

Finite Mathematics and Applied Calculus (MindTap Course List)

In Exercises 1-6, simplify the expression. (36)2+[ 1(5) ]2

Calculus: An Applied Approach (MindTap Course List)

24. (a) Graph . (b) Graph . (c) Algebraically show why these graphs are identical.

Mathematical Applications for the Management, Life, and Social Sciences

a. What is the graph of a function? Use a drawing to illustrate the graph, the domain, and the range of a funct...

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

The length of the curve given by x = 3t2 + 2, y = 2t3, is:

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

Auto Tune-Ups. An automobile dealer conducted a test to determine if the time in minutes needed to complete a m...

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

Graphs and Function values: Get the standard view of the graph of f=x330+1. Use the graph to get the value of f...

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

In Problems 1332 use variation of parameters to solve the given nonhomogeneous system. 26. X=(2286)X+(13)e2tt

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