The Sample Size Needed to Estimate a Population Mean to Within

question 44

Short Answer

The sample size needed to estimate a population mean to within 2 units with a 95% confidence when the population standard deviation equals 8 is: $\begin{array}{|l|l|}\hline\text { A. } & 9 . \\\hline \text { B. } & 61 . \\\hline \text { C. } & 62 . \\\hline \text { D. } & 8 .\\\hline\end{array}$

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Definitions:

Class File

A file containing bytecode compiled from a Java source file, suitable for execution by the Java Virtual Machine.

Null

A special marker used in many programming languages to indicate that a reference does not point to any object or is not associated with any value.

Boolean Expression

An expression in programming that evaluates to either true or false, often used in conditional statements.

Javadoc

A documentation generator for Java code, which creates HTML pages of API documentation from Java source code.