Student's t-Test for Independent Samples (MacFarland) Describes how and why to use a t-test. t-Test Problem (Polamar.edu) Provides an example of how to calculate a t-test. t-Test for Dependent and Independent Samples (Statsoft.com) Describes the concepts and methods.
Average Temperatures for Anchorage. Anchorage's coldest month is January when the average temperature overnight is 9.3Â°F. In July, the warmest month, the average day time temperature rises to 65.3Â°F. Average Rainfall for Anchorage.
The average annual precipitation at the airport is 16.63 inches (422 mm). Because of Anchorage's latitude, summer days are very long and winter daylight hours are very short. Anchorage is often cloudy during the winter, which decreases the amount of sunlight experienced by residents.