Purchase Solution

a confidence interval

Not what you're looking for?

Ask Custom Question

Given the following information, calculate a confidence interval using a 95 percent confidence level: sample proportion =.4, standard error of the proportion =.05, and sample size =100.

Purchase this Solution

Solution Summary

This job calculates a confidence interval.

Solution Preview

The mean is 0.4 and the standard error is 0.05
<br>because we only know the sample mean, we use t-stat to ...

Purchase this Solution

Free BrainMass Quizzes
Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.