Purchase Solution

Statistics: Confidence intervals explanation

Not what you're looking for?

Ask Custom Question

What do confidence intervals represent? What is the most controllable method of increasing the precision of or narrowing the confidence interval? What percentage of times will the mean, or population proportion, not be found within the confidence interval?

about 200 words, no references

Purchase this Solution

Solution Summary

The expert examines confidence interval explanations for statistics.

Solution Preview

Confidence intervals are computed from a data sample that is considered to represent a population. The values of the interval are most likely to cover the true population number. In other words, the interval between X and Y will surely contain the value that represents the population.

The ...

Purchase this Solution


Free BrainMass Quizzes
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.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

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

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