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.
Advanced statistical techniques for comparison like ANOVA will be covered in a separate article because they are broad and have a variety of applications. {mospagebreak title=How to conduct a T-test in MS Excel}. A T-test is used to compare two data sets.NOVA (Analysis of variance) is used to compare the means of two or more data sets. An F-test is used to compare the variation of two data sets. In MS Excel, the following are the available tools for both built-in and data analysis toolpak features: 1  T-test.