In an Early Study, Researchers at Ivy University Found That

question 95

Short Answer

In an early study, researchers at Ivy University found that 33 percent of the freshmen had received at least one A in their first semester. Administrators are concerned that grade inflation has caused this percentage to increase. In a more recent study, of a random sample of 500 freshmen, 185 had at least one A in their first semester. Calculate the p-value associated with the test statistic and test the claim at α = .05 using the p-value rule.

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Definitions:

Abdominal

Pertaining to the abdomen, the body region that contains the primary organs of the digestive system.

Thoracic

Pertaining to the thorax, or chest region, which houses the heart and lungs among other vital organs.

Dorsal

Relating to the back or posterior part of an organism in contrast to the ventral, or front, side.

Mediastinum

The central compartment of the thoracic cavity, located between the lungs, containing the heart, thymus, esophagus, trachea, and major blood vessels.