Lake Tahoe Bicycle Coalition â Bikeway 2016. Bike the West & Americaâs Most Beautiful Bike Ride continues to promote the Lake Tahoe Bikeway, in conjunction with the Lake Tahoe Bicycle Coalition.
Thus based on the data in the sample an sich (as calculated by a test for normality), it is unlikely that the sample is part of a normal distribution, but we already know it is part of a normal distribution, because it's part of population that is normally distributed.
A data set is normally distributed when the data itself follows a uni-modal bell-shaped curve that is symmetric about its mean. This graph, created from the Probability Distribution Plot in Minitab Statistical Software, shows a normal distribution with a mean of 0 and a standard deviation of 1:In the case of running a normality test, the key assumption for the data is that it is continuous.When a data set is continuous, there is an infinite amount of values between any two numbers in that data set. If someone asked you to count all of values in any given continuous data set, you couldnât.H0: data follow a normal distribution). (H1: data do not follow a normal distribution). To answer your question, The Chi-square test for Normality could return a false positive if the null hypothesis happens to be true, and the observations do come from the a normal distribution.