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

question 115

Short Answer

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, state the null hypothesis for this study.

---

Definitions:

Oxygen Deprivation

A condition resulting from insufficient oxygen supply to the body or a specific organ, potentially leading to severe health complications.

Oxytocin

A hormone and neurotransmitter involved in childbirth and lactation, also known as the "love hormone," it plays a role in social bonding and trust.

Vasopressin

A hormone secreted by the pituitary gland that regulates water retention in the body and influences social behavior and bonding.

Infants' Cries

Vocal sounds made by babies to signal their needs or discomforts.