# Sample size calculation

Not what you're looking for?

How does the bell-shaped curve for the sampling distribution of sample means for samples of size n = 120 compare to the bell-shaped curve for the sampling distribution of sample means for samples of size n = 95?

Answer: A curve with a sample size of 120 will fit a perfect curve more accurately than a curve with a sample size of 95. As the sample size is increased, the distribution becomes more precise.

BUT QUESTION--What happens to the variability in larger samples that creates that constriction in the bell?

##### Purchase this Solution

##### Solution Summary

The solution provides step by step method for the calculation of sample size for normal distribution . Formula for the calculation and Interpretations of the results are also included.

##### 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

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.

##### 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.