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.
T-TEST vs ANOVA. Gathering and calculating statistical data to acquire the mean is often a long and tedious task. The t-test and the one-way analysis of variance (ANOVA) are the two most common tests used for this purpose.