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.

---

Definitions:

Scrap

Material that is discarded or deemed as waste during the manufacturing process, often due to defects, excess, or irrelevance to the final product.

Obsolescence

The process of becoming outdated or no longer used, often because of the introduction of newer and more effective technologies or products.

Safety Stock

An additional quantity of an item held in inventory in order to reduce the risk that the item will be out of stock.

Standard Deviation

A statistic that measures the dispersion or variability of a dataset relative to its mean, indicating how spread out the data points are.