The Average Cost of Tuition and Room and Board at a Small

question 10

Multiple Choice

The average cost of tuition and room and board at a small private liberal arts college is reported to be $8,500 per term, but a financial administrator believes that the average cost is higher. A study conducted using 350 small liberal arts colleges showed that the average cost per term is $8,745. The population standard deviation is $1,200. Let α = 0.05. What is the critical z value for this test?

• A)+1.960
• B)-1.960
• C)+1.645
• D)-1.645

---

Definitions:

IR Spectroscopy

A technique used in chemistry to identify molecular structures by measuring the absorption of different frequencies of infrared light, providing information about functional groups present.

IR Absorption

A phenomenon where molecules absorb infrared radiation at specific wavelengths, corresponding to vibrations of their chemical bonds; used in spectroscopy for molecule identification.

Characteristic Stretch

The specific frequency at which molecular bonds stretch during IR absorption, indicative of certain functional groups.

Characteristic Stretch

Specific vibrations in molecules, observed in infrared spectroscopy, that are associated with particular functional groups and bonds within the molecule.