Though the northernmost islands experience a bit of rain, September is largely dry, warm and sunny throughout the islands. High season in Hawaii doesn't start till mid-December, so September is still off-season for the Hawaii tourism industry and deals abound.
T-tests and analysis of variance (ANOVA) are widely used statistical methods to compare group means. For example, the independent sample t-test enables you to compare annual personal income between rural and urban areas and examine the difference in the grade point average (GPA) between male and female students.
[Case 4] Compare the data against the within-subject factor: In this case, you will make a comparison against the within-subject factor. In other words, if you have done repeated-measure ANOVA, this is the way to do a post-hoc test. The methods for this case can be used for tests against between-subject factors.