You Have Been Assigned to Determine Whether More People Prefer

question 43

Essay

You have been assigned to determine whether more people prefer Coke to Pepsi.Assume that roughly half the population prefers Coke and half prefers Pepsi.How large a sample would you need to take to ensure that you could estimate,with 95% confidence,the proportion of people preferring Coke within 3% of the actual value?

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Definitions:

Jean Piaget

A Swiss psychologist known for his pioneering work in child development, particularly his theory of cognitive development that describes how children construct a mental model of the world.

Lawrence Kohlberg

A psychologist best known for his theory of stages of moral development, which suggests that an individual's moral reasoning develops through a series of stages.

B.F. Skinner

An American psychologist and behaviorist best known for his contributions to the development of operant conditioning and behavior modification techniques.

Insecure Attachment

A type of attachment style characterized by anxiety, avoidance, and difficulty creating emotional connections with others, often resulting from less supportive caregiving in early development.