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A major department store chain is interested in estimating the mean amount its credit card customers spent on their first visit to the chain's new store in the mall. Fifteen credit card accounts were randomly sampled and analyzed with the following results: X = $50.50 and S = 20. Assuming the distribution of the amount spent on their first visit is approximately normal, what is the shape of the sampling distribution of the sample mean that will be used to create the desired confidence interval for μ?
Objective Personality Tests
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Bender Gestalt II
A psychological assessment tool used to evaluate visual-motor functioning and developmental disorders through the copying of simple designs.
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A noticeable lag in a child's physical, cognitive, behavioral, emotional, or social development, compared to normative milestones.
Compulsive Behavior
Actions performed repeatedly due to an irresistible urge, often without rational motivation.
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