Evolutionary theories often emphasize

Reference no: EM13502771

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, eight paid volunteers were placed (individually) in a room in which there was no light from the outside and no clocks or other indications of time. They could turn the lights on and off as they wished. After a month in the room, each individual tended to develop a steady cycle. Their cycles at the end of the study were as follows: 25, 27, 25, 23, 24, 25, 26, and 25.

Using the .05 level of significance, what should we conclude about the theory that 24 hours is the natural cycle? (That is, does the average cycle length under these conditions differ significantly from 24 hours?) (a) Use the steps of hypothesis testing. (b) Sketch the distributions involved. (c) Explain your answer to someone who has never taken a course in statistics.

Reference no: EM13502771

Questions Cloud

Reinforcement and stimulus control : The assignment is in connection with (Reinforcement and Stimulus Control)

A highly-competitive market situation : A highly-competitive market situation, while a company under very predictable market conditions would do well with a bureaucratic structure.

Humanistic-social-cognative perspectives-self- discipline : Jasper ,a high school sophmore, lacks self- discipline, fails to plan ahead and is excessively anxious.He is quickly frustrated by challenging tasks and frequently becomes ovely critical of others.Use the psychoanalytic ,humanistic and social-cognati..

Use the steps of hypothesis testing : Do students at various universities differ in how sociable they are? Twenty-five students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with other ..

Evolutionary theories often emphasize : 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 pat..

What rehearsal strategies seem to be most successful : When you study for a test, what rehearsal strategies seem to be most successful – what techniques do you prefer? Do you feel your strategies are moving information into long-term memory or just strengthening your short-term memory?

In a percentile schedule of reinforcement : In a percentile schedule of reinforcement,:

Covert sensitization technique : Description of how to apply the 7 Step Covert Sensitization Technique to the destructive habit of eating too much sweets and refined bakery products ?

Developed a new drug for reducing appetite : Having a hard time getting started. I'm suppose to pretend I developed a new drug for reducing appetite and I have to design an experiment that tests the effectiveness of this drug on morbidly obese individuals

User Account

All Pages