The sample size is 288 and by Shapiro- Wilk test the data is not normally distributed.
If the data is not normally distributed and the skewness is = 0.208 SE of skewness is 0.144 , is it acceptable to use t-test? [duplicate]
2$\begingroup$ What was the p-value for the test? $\endgroup$– Michael R. ChernickApr 20, 2018 at 22:26
1$\begingroup$ What is the purpose of the test and what is your criterion for significance? $\endgroup$– whuber ♦Apr 21, 2018 at 13:50