Consider a Situation in Which Rosa Measures the Diameter of 15

question 46

Multiple Choice

Consider a situation in which Rosa measures the diameter of 15 trees from a population that she thinks (based on published reports) has an average diameter of 240 cm. Her sample has a mean of 253.1 cm with a standard deviation of 25.21 cm. Based on her t-test statistic, which of the following best describes her conclusion?

• A) She fails to reject the null hypothesis of the t-test and concludes that the mean diameter of the trees seems to differ from 240 cm.
• B) She fails to reject the null hypothesis of the t-test and concludes that the mean diameter of the trees doesn't seem to differ from 240 cm.
• C) She rejects the null hypothesis of the t-test and concludes that the mean diameter of the trees seems to differ from 240 cm.
• D) She rejects the null hypothesis of the t-test and concludes that the mean diameter of the trees doesn't seem to differ from 240 cm.

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Definitions:

Mediating Agent

An entity or factor that intervenes or facilitates a process or interaction between other entities or phenomena.

Biological Impulses

Innate and instinctual drives that determine behavior, such as hunger, thirst, and the need for sleep.

Preconscious

A term in psychoanalytic theory referring to the part of the mind that contains thoughts, memories, and feelings that are not currently in conscious awareness but can be accessed.

Unconscious

The segment of the mind beyond the conscious mind's reach, yet it influences behavior and feelings.