Question
SamSleepresearcherhypothesizes that people who are allowed to sleep for only four hours will score significantly lower than people who are allowed to sleep for eight
SamSleepresearcherhypothesizes that people who are allowed to sleep for only four hours will score significantly lower than people who are allowed to sleep for eight hours on a cognitive skills test. He brings 8 participants into his sleep lab and randomly assigns them to one of two groups. In one group he has participants sleep for eight hours and in the other group he has them sleep for four. The next morning he administers the SCAT (Sam's Cognitive Ability Test) to all participants. (Scores on the SCAT range from 1-9 with high scores representing better performance).Please analyze this data using a two-tailed test at the= .05 level.
4 hours of Sleep | 8 hours of sleep |
5 4 1 2 | 5 7 5 3 |
Part A. What is the DV? And the IV (remember to include levels)?
Part B. Write out the null and research hypotheses in symbols.
Part C. Calculate the standard error for this type of test.
Part D. What are thedfand the critical value for this test?
Part E. What is the obtained value of the test statistic?
Part F. What is your statistical conclusion?
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