Advanced Topic: a Sleep Deprivation Researcher Randomly Assigned 18 Participants

question 67

Essay

Advanced topic: A sleep deprivation researcher randomly assigned 18 participants to one of three conditions: 12 hours without sleep,24 hours without sleep,or 36 hours without sleep.Following the manipulation,participants completed a measure of negative mood.Mood scores for each group are listed below.Using the .05 level,was there a significant difference in negative mood depending on length of sleep deprivation? a.Carry out the five steps of hypothesis testing and make a complete analysis of variance table.
b.Sketch the distributions involved.
c.Figure the effect size of this study and indicate whether it is nearer to small,medium,or large.
d.Explain the logic of what you did to a person who is familiar with the analysis of variance using the approach in which you figure the variance for each group,but who has not learned anything about the structural model approach.(Be sure to explain dividing the overall deviation from the grand mean,the logic of the different parts of the analysis of variance table,and how all this relates to the logic of the approach in which you figure the variance for each group.)

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Definitions:

Abnormal Returns

Financial returns that exceed what is expected based on risk-adjusted benchmarks or historical averages.

Macroeconomic Analysis

The examination of the overall economic dynamics, including national income, growth rates, inflation, and unemployment.

Analyst

A professional who studies various aspects of financial data to predict market trends, evaluate investments, and provide recommendations.

Nominal Interest Rate

The stated rate of interest without adjustment for inflation or other factors.