Shapiro-Wilk test for normality

The Shapiro-Wilk test is suitable for testing normality. The result as presented in p-value is easy to interpret. In the original form there is limit of 8 to 50 samples. A revised approximation method exists that can extend the number to 5000. The calculation steps are quite complex for hand held calculator like in the TI-84. In R there is a built-in function. Using the example in the original paper of Shapiro-Wilk test to calculate this statistics in R is simple:

shapiro

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One thought on “Shapiro-Wilk test for normality

  1. Pingback: Performing Shapiro-Wilk test on TI-84 | gmgolem

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