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

One sample of n = 12 scores has a mean of M = 7 and a second sample of n = 8 scores has a mean of M = 12. If the two samples are combined, what is the mean for the combined sample?

To determine

To Find: The mean of the combined sample

Explanation

Given info:

A sample of 12 scores has mean 7 while the second sample has 8 scores and a mean value 12.

Calculations:

Calculate sum of scores, X1 and X2 for the two samples as:

X1=n1×M1=12×7=84

Similarly,

X2=n2×M2=8×12=96

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

let f(x) = x 1, g(x) = x+1, and h(x) = 2x3 1. Find the rule for each function. 17. f-hg

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

In problems 5-8, write the following sets in a second way. 8.

Mathematical Applications for the Management, Life, and Social Sciences

Solve each inequality for x. a 1e3x12b 12lnx3

Calculus (MindTap Course List)

If f(x) = g(x) for all x (a, b), then ______. a) f(a) = g(a) and f(b) = g(b) b) f(x) = g(x) c) f(x) = g(x) + c...

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