Question

There have been a number of studies on the effects of "jetlag". Jetlag seems to be worse when one travels eastward. Hayes (1993) examined how many days it takes a person to adjust after taking a long flight. She had several groups of subjects: one group flew east across time zones (California to New York), a second group flew west (New York City to Los Angeles), and a third group took a long flight within the same time zone (New York to Miami). The researcher was also interested in whether men are affected more than women. The dependent variable is the number of days needed to adjust.

State the alternate hypothesis in words for each test listed below.

1. Gender:

Answer 1

For gender, if a researcher is planning on an alternate hypothesis it would basically depend on how many gender he/she is taking.

Sometimes researcher taked only male and female, other times transgender and LGBT group is also included. so, for the Hayes experiment, an alternate hypothesis for gender can be -

There will be a significant gender difference (male and female) in the experience of jetlag between the group who flew to east, west and longer flight in same time zone.