Purchase Solution

Mean score on a certain aptitude test across the nation is 100

Not what you're looking for?

Ask Custom Question

Assume that the mean score on a certain aptitude test across the nation is 100, and that the standard deviation is 20 points. Find the probability that the mean aptitude test score for a randomly selected group of 150 8th graders is between 97 and 103.

Purchase this Solution

Solution Summary

The mean score on a certain aptitude test across is examined.

Solution Preview

Please see the attachment.

Probability
Assume that the mean score on a certain aptitude test across the nation is 100, and that the standard deviation is 20 points. ...

Purchase this Solution


Free BrainMass Quizzes
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.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

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.