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Many people who bought X-Game gaming systems over the holidays have complained that the systems they purchased were defective. In a sample of 1200 units sold, 18 units were defective.
a.Determine a 95% confidence interval for the percentage of defective systems.
b.If 1.5 million X-Games were sold over the holidays, determine an interval for the number of defectives in sales.
Independent Variable
In research, a variable that is manipulated or changed by the researcher to determine its effect on another variable, called the dependent variable.
Control Group
In experimental research, a group of subjects that does not receive the experimental treatment and is used as a benchmark to measure the effect of the treatment on the experimental group.
Human Participants
Individuals who take part in research studies or experiments, contributing data through their actions, behaviors, or biological samples.
Debrief Participants
A process used in research studies where participants are informed about the study's purpose, procedures, and outcomes after their participation is complete.
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