T-test for one sample mean

Assignment Help Basic Statistics

Reference no: EM1312493

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 5% 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: EM1312493

Questions Cloud

Adjusting entry to recognize bad debts : Assuming that the company uses the percentage of receivables allowance method, prepare the adjusting entry on December 31, 2001, to recognize bad debts expense.

Prepare a trial balance of stephanie stouse : Prepare a trial balance of Stephanie Stouse, Registerd Dietician at November 30, 2007

Determine the maximum horizontal force : Determine the maximum horizontal force that can be applied to the block before it slips.

Find the straight-line depriciation method : Find the Straight-line depriciation method and The Double-declining depriciation method

T-test for one sample mean : 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.

Evaluate the accumulated depreciation for each machine : Evaluate the accumulated depreciation for each machine at December 31, 2008 - The Capital Company purchased 3 machines in the past year. Information regarding these items

Bond issue and interest accrued on bonds due adjustment : Show the journal entries in 2006. (Please be reminded the year-end for ABC Corporate is Dec 31, adjusting is required)

Understanding basics of epidemiology : What is basics of epidemiology, brief description on Understanding basics of epidemiology

Calculation of estimated allowance for doubtful accounts : Calculation of Estimated Allowance for doubtful accounts with a change in Sales - What would you answers be for parts 1 and 2 if sales for the current period were $220,000

User Account

All Pages