Recently, an Automobile Insurance Company Performed a Study of a Random

question 114

Multiple Choice

Recently, an automobile insurance company performed a study of a random sample of 15 of its customers to determine if there is a positive relationship between the number of miles driven and the age of the driver. The sample correlation coefficient is r = .38. Given this information, and assuming that the test is to be performed at the .05 level of significance, which of the following is the correct test statistic?

• A) t = 1.4812
• B) t = 1.7709
• C) z = 2.114
• D) t = 1.74

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Definitions:

Adolescent Egocentrism

A developmental stage where teenagers excessively focus on themselves and are often unable to see things from others' perspectives.

Sense of Invincibility

This refers to a psychological state where an individual feels incapable of being defeated or experiencing harm.

Temperament

An individual’s characteristic manner of thinking, behaving, or reacting, often considered as innate rather than learned.

Difficult

Possessing or posing a challenge or requiring great effort or skill to accomplish, deal with, or understand.