A Researcher Wants to Estimate the Percentage of All Adults

question 38

Essay

A researcher wants to estimate the percentage of all adults that have used the Internet to seek pre-purchase information in the past 30 days,with a tolerable sampling error (E)of 0.03 and a confidence level of 97.5%.If secondary data indicated that 25% of all adults had used the Internet for such a purpose,what is the sample size?

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Definitions:

Bipolar Disorder

A mental health condition marked by extreme mood swings from manic highs to depressive lows.

Disorganised Schizophrenia

A subtype of schizophrenia characterized by incoherent speech, erratic behavior, and a lack of typical emotional responses.

Antisocial Personality Disorder

A mental health disorder characterized by a long-term pattern of manipulating, exploiting, or violating the rights of others.

Evolved Module

A structure within the brain thought to develop through natural selection and is dedicated to specific functions like language or perception.