One of the Leading Dot-Com Companies Has Found That the Proportion

question 129

Multiple Choice

One of the leading dot-com companies has found that the proportion of customers who come into its Web site that actually makes a purchase is 0.045. The company plans to see whether this rate still holds by selecting a random sample of 200 hits on its Web site. Given that the 0.045 rate still applies, what is the standard deviation of the sampling distribution?

• A) Approximately 0.0147
• B) About 0.0002
• C) About 0.0354
• D) Can't be determined without knowing the mean.

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Definitions:

Diagnostic Labels

Terms or categories used to describe and classify mental health conditions and their symptoms.

Mental Health Professionals

Trained individuals who offer services for the purpose of improving an individual’s mental health or to treat mental illnesses.

ADHD

Attention-Deficit/Hyperactivity Disorder, a neurodevelopmental disorder characterized by patterns of inattention, hyperactivity, and impulsivity that are more frequent and severe than typically observed in individuals at a comparable level of development.

Distractibility

A state or condition in which the attention is easily pulled away from the task at hand towards irrelevant stimuli.