Example 1: The population from which samples are selected is {1,2,3,4,5,6}. This population has a mean of 3.5 and a standard deviation of 1.70783. The next display shows a histogram of the population.

parameters for the normal curve. The normal parameters and are estimated by the sample mean ()and the sample standard deviation (). a chi-square goodness-of-fit test. Compared to the usual cutoff ...

Statisticians frequently assume that data follow a normal distribution when developing statistical methods and performing practical data analysis. In most introductory statistics textbooks, the ...

The shape of a histogram can tell us some key points about the distribution of the data used to create it. It can tell us the relationship between the mean and the median, and also allow us to ...

Charlene Rhinehart is a CPA , CFE, chair of an Illinois CPA Society committee, and has a degree in accounting and finance from DePaul University. Vikki Velasquez is a researcher and writer who has ...