Evolutionary theories often emphasize that humans have adapted to their physical environment. One such theory hypothesizes that people should spontaneously follow a 24-hour cycle of sleeping and waking-even if they are not exposed to the usual pattern of sunlight. To test this notion, 8 paid volunteers were placed (individually) in a room in which there was no light from the outside and no clocks or other indicators of time. After a month in the room, each individual developed a cycle. Their cycles at the end of the study were as follows: 25, 27, 25, 23, 24, 25, 26, 25. Using the .05 significance level, determine if these participants' cycles are different from a 24-hour cycle.

SS = 10, Sample mean = 25

Provide an interpretation of your findings and the report of the statistics for this hypothesis test.