A sleep researcher is studying the effect of sleep deprivation on cognitive abilities. In his most recent study, one group of participants was kept awake all night and another group was allowed to sleep comfortably. Both groups were subsequently given a basic math test to see how many problems could be solved within a 5-minute period of time. Scores for both groups are listed below. The researcher believes that the sleep deprived participants will solve fewer problems
.
a. Conduct an independent samples t test with α = .01.
b. Determine and interpret the effect size.
Definitions:
Opportunity Cost
The cost of missing out on the next best alternative when making a decision.
Point A
Typically used as a reference point in diagrams or illustrations in economics or geometry.
Opportunity Cost
The dues for not selecting the following most suitable option when making decisions.
Point D
Another specific point on a graph or economic model, indicative of a different state or condition than Point C, useful in comparative analysis.
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