BuyFindarrow_forward

Essentials of Statistics for the B...

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

Solutions

Chapter
Section
BuyFindarrow_forward

Essentials of Statistics for the B...

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

Calculate the mean and SS (sum of squared deviations) tor each of the following samples. Based on the value for the mean, you should be able to decide which SS formula is better to use.

Sample A: 1 4 8 5

Sample B: 3 0 9 4

To determine

To find: The mean and sum of squared deviations for the sample A and B.

Explanation

Given info:

The data represents the values of sample A and sample B. The sample A is 1, 4, 8, 5 and sample B is 3, 0, 9, 4.

Calculation:

Sample A:

The general formula for mean is,

μ=xiN

The mean for the sample A is,

μ=xiN=1+4+8+54=184=4.5

Thus, the mean for the sample A is 4.5.

The general formula for Sum of squared deviations is,

SS=(xiμ)2

The Sum of squared deviations for the sample A is,

SS=(xiμ)2=(14.5)2+(44.5)2+(84.5)2+(54.5)2=12.25+0.25+12.25+0.25=25

Thus, the Sum of squared deviations for the sample A is 25

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

Additional Math Solutions

Find more solutions based on key concepts

Show solutions add

Find the mean for the following set of scores: 2, 7, 9, 4, 5, 3, 0, 6

Essentials of Statistics for The Behavioral Sciences (MindTap Course List)

Evaluate the limit, if it exists. limt01+t1tt

Calculus: Early Transcendentals

In Exercises 23-36, find the domain of the function. 25. f(x)=3x+1x2

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

Estimating Slope In Exercises 1 4, estimate the slope of the line.

Calculus: An Applied Approach (MindTap Course List)

Solve each equation and check: 313y=41

Elementary Technical Mathematics

In Problems 13-16, find the mean, variance, and standard deviation for each probability distribution. 15.

Mathematical Applications for the Management, Life, and Social Sciences

Evaluate the expression sin Exercises 116. (23)2

Finite Mathematics and Applied Calculus (MindTap Course List)

In Exercises 5-8, find the values of the variables. [x310y2][113z42]=[12422]

Finite Mathematics for the Managerial, Life, and Social Sciences

Express the limit as a derivative and evaluate. 106. limx1x171x1

Single Variable Calculus: Early Transcendentals, Volume I

83-94 Evaluate the integral. 12e1/xx2dx

Calculus (MindTap Course List)

The range of f(x) = tan1 x is: a) [2,2] b) (2,2) c) (0,2) d) all reals

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

converges to: 2 the series diverges

Study Guide for Stewart's Multivariable Calculus, 8th