t-Test. Papers Introduction to the t-Test (University of Leicester) Describes the conditions that must be met in order to use of the test.Z-test and t-test are basically the same, they compare between two means to suggest whether both samples come from the same population.
Anchorage gets 22 hours of daylight on the longest day of summer. On the shortest day of winter, there are still seven and a half hours of daylight.
Time difference to GMT/UTC. Time Change Dates (Summer time) Anchorage summer time (DST) starts on Sunday 12 March 2017, 02:00 Anchorage standard time. Anchorage winter time starts on Sunday 05 November 2017, 02:00 Anchorage daylight time.