TABLE 13-8 It Is Believed That GPA (Grade Point Average, Based on Based

question 117

Multiple Choice

TABLE 13-8
It is believed that GPA (grade point average, based on a four point scale) should have a positive linear relationship with ACT scores. Given below is the Excel output from regressing GPA on ACT scores using a data set of 8 randomly chosen students from a Big-Ten university.

-Referring to Table 13-8, what are the decision and conclusion on testing whether there is any linear relationship at 1% level of significance between GPA and ACT scores?

• A) Do not reject the null hypothesis; hence there is not sufficient evidence to show that ACT scores and GPA are linearly related.
• B) Reject the null hypothesis; hence there is not sufficient evidence to show that ACT scores and GPA are linearly related.
• C) Do not reject the null hypothesis; hence there is sufficient evidence to show that ACT scores and GPA are linearly related.
• D) Reject the null hypothesis; hence there is sufficient evidence to show that ACT scores and GPA are linearly related.

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Definitions:

Internal Locus

pertains to the belief that one's actions are the result of personal choices and efforts.

Plain Unlucky

An expression describing a situation or outcome that is unfavorable and occurred by chance, without any specific cause.

Poor Grades

Reflects academic performance that falls below the expected or desired standard, often an indicator of difficulties in understanding or engaging with material.

Attitudes

Settled ways of thinking or feeling about something, often reflected in a person's behavior.