   Chapter 4, Problem 17P 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

For the data in the following sample:8    1    5    1    5 a. Find the mean and the standard deviation. b. Now change the score of X = 8 to X = 18, and find the new mean and standard deviation. c. Describe how one extreme score influences the mean and standard deviation.

a.

To determine

To find: The mean and standard deviation for the sample scores.

Explanation

Given info:

The sample scores are 8,1,5,1 and 5.

Calculation:

The formula of sample mean is,

M=xin

The formula of Standard Deviation is

SD=(xiM)2n1

Sample Mean:

The mean of scores is,

M=xin=8+1+5+1+55=205=4

Standard Deviation:

The standard deviation of the scores is:

SD=

b.

To determine

To find: The new mean and standard deviation when X=8 is changed by X=18.

(c)

To determine

To describe: The extreme score influences the mean and standard deviation.

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

In Exercises 49-62, find the indicated limit, if it exists. 52. limx02x23xx

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

The area of the region at the right is:

Study Guide for Stewart's Multivariable Calculus, 8th

True or False: converges mean exists.

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