Purchase Solution

Empirical Rule for Normal Distribution

Not what you're looking for?

Ask Custom Question

Consider that measurement 2 (M2) in a random sample of 1000 controls from the Disease Y study population follows the normal distribution. The sample mean of M2 is 90 and 95% of the sample observation falls within 70 and 110. Calculate the sample standard deviation and standard error of the sample mean and intepret.

I would really appreciate some ideas of how to go about calculate sd and se from such a statement.

Purchase this Solution

Solution Summary

This solution helps with a normal distribution problem.

Solution Preview

Hi there,

For this question, I believe that you need to use the empirical rule to determine the standard deviation. The empirical states the following for a normal distribution:

- 68% of the area of the curve will be ...

Purchase this Solution


Free BrainMass Quizzes
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.

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.