menu
Hit Return to see all results
Chapter 4, Problem 13P
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

# A population has a mean of μ = 30 and a standard deviation of σ = 5. a. If 5 points were added to every score in the population, what would be the new values for the mean and standard deviation? b. If every score in the population were multiplied by 3, what would he the new values for the mean and standard deviation?

a.

To determine

To find: The new values for the mean and standard deviation for the population scores, adding 5 points to each of the population scores.

Explanation

Given info:

The data represents the mean and standard deviation for the population .the population has mean and population standard deviation are 30, 5.

Calculation:

New mean:

If n points added to every score in population, the new value for mean is,

μ=E(X+n)=E(X)+E(n)=E(X)+n

The new mean for the population of scores is,

μ=E(X+5)=E(X)+E(

b.

To determine

To find: The new values for the mean and standard deviation for the population scores, multiplied 3 points to each of the population scores.

### 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

#### Factor: 9x415x218x

Elementary Technical Mathematics

#### WRITING ABOUT CONCEPTS Ratio Test State the Ratio Test.

Calculus: Early Transcendental Functions (MindTap Course List)

#### The interval of convergence of is: [−1, 1] [−1, 1) (−1, 1] (−1, 1)

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

#### True or False: converges.

Study Guide for Stewart's Multivariable Calculus, 8th