The Sample Size Needed to Provide a Margin of Error

question 27

Multiple Choice

The sample size needed to provide a margin of error of 3 or less with a .95 probability when the population standard deviation equals 11 is

• A) 10.
• B) 11.
• C) 51.
• D) 52.

Understand the fundamental concepts of management and its various functions.

Recognize the historical evolution of management theories and key contributors.

Comprehend the goals of organizational behaviour and apply them to solve organizational problems.

Explain the concept and practice of evidence-based management.

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Definitions:

Variances of Returns

A statistical measure of the dispersion of returns for a given security or market index, showing the degree of variation from the average.

Beta

A measure of the volatility or systematic risk of a security or a portfolio compared to the market as a whole.

Regression Analysis

A statistical method used to model the relationship between a dependent variable and one or more independent variables.

Adjustment Technique

Methods or procedures used to modify data or values, bringing them in line with a specific standard or making them more comparable.