TABLE 9-9 The President of a University Claimed That the Entering Class

question 74

True/False

TABLE 9-9
The president of a university claimed that the entering class this year appeared to be larger than the entering class from previous years but their mean SAT score is lower than previous years. He took a sample of 20 of this year's entering students and found that their mean SAT score is 1,501 with a standard deviation of 53. The university's record indicates that the mean SAT score for entering students from previous years is 1,520. He wants to find out if his claim is supported by the evidence at a 5% level of significance.
-Referring to Table 9-9, the evidence proves beyond a doubt that the mean SAT score of the entering class this year is lower than previous years.

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Definitions:

High-iron foods

foods that are rich in iron, essential for the production of hemoglobin and preventing anemia; these include red meat, beans, and fortified cereals.

Fat and cholesterol

Substances found within the body and foods that are essential for health but can lead to heart disease when consumed in excess.

Infant digestive systems

The developmental physiological system in infants that processes and absorbs nutrients from ingested food, adapting as the infant grows.

Food allergies

An immune system response that occurs soon after eating a certain food, causing various symptoms which can range from mild to severe.