A Researcher Conducted a Survey on a University Campus for a Sample

question 29

Short Answer

A researcher conducted a survey on a university campus for a sample of 64 third-year students and reported that third-year students read an average of 3.12 books in the prior academic semester, with a standard deviation of 2.15 books. Determine the probability that the sample mean is:
a. less than 3.45.
b. between 3.38 and 3.58.
c. above 2.94.

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Definitions:

Disequilibrium

A state of imbalance or instability, often used in economics to describe markets where supply and demand are not in balance, and in psychology, to describe the conflict experienced when existing knowledge does not fit with new information.

Imitative Capacity

The ability of an individual to mimic or reproduce actions, behaviors, or sounds observed from others.

Deferred Imitation

Imitating the behavior of an absent model; illustrates infants’ capacity for mental representation.

A-not-B Ability

A cognitive phenomenon observed in infants where they reach for a hidden object where they last found it (A) rather than its new location (B), showcasing a development phase in object permanence understanding.