   Chapter 11, Problem 7P Essentials of Statistics for the B...

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

Solutions

Chapter
Section Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

a. A repeated-measures study with a sample of n = 9 participants produces a mean difference of M = 3 with a standard deviation of s = 6. Use a two-tailed hypothesis test with α = .05 to determine whether it is likely that this sample came from a population with μ D = 0.b. Now assume that the sample mean difference is μ D = 12, and once again visualize the sample distribution. Use a two-tailed hypothesis test with α = .05 to determine whether it is likely that this sample came from a population with μ D = 0.c. Explain how the size of the sample mean difference influences the likelihood of finding a significant mean difference.

a.

To determine
Sample came from a population with μD=0.

Explanation

Given info:

Numbers of participants in the sample are n=9. Mean difference is MD=3.

Sample standard deviation is s=6. Level of significance for two tailed test is α=0.05.

Calculation:

Null Hypothesis: Sample came from a population with μD=0.

Alternate Hypothesis: Sample came from a population with μD0

In repeated-measures study, t statistic under null hypothesis is given by:

t=MDμDsn=3069=1

b.

To determine
Sample came from a population with μD=0.

c.

To determine

To explain: How the size of the sample mean difference influences the likelihood of finding a significant mean difference.

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

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

Get Started

Evaluate the integral. 11t(1t)2dt

Single Variable Calculus: Early Transcendentals

In Exercises 35-38, find an equation of the line that has slope m and y-intercept b. 36. m = 2; b = 1

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

The graph of x = cos t, y = sin2 t is:

Study Guide for Stewart's Multivariable Calculus, 8th

In Exercises 1 to 6, find cos and cos.

Elementary Geometry for College Students 