Consider the Following to Answer the Question(s) Below

question 15

Multiple Choice

Consider the following to answer the question(s) below:
The cost of a university education has increased at a much faster rate than costs in general over the past twenty years. In order to compensate for this, many students work part- or full-time in addition to attending classes. At one university, it is believed that the average number of hours students work per week exceeds 20. A random sample of 20 students was selected and the following values were observed:

-For a more accurate determination, the university wants to estimate the average number of hours worked per week by students to within one hour with 99% confidence. How many randomly selected students would they need to sample?

• A) 1229
• B) 35
• C) 554
• D) 24
• E) 62

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Definitions:

Periosteum

The dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints.

Nervous System

The network of nerve cells and fibers that transmits signals between different parts of the body, facilitating bodily functions and responses to the environment.

Neuritis

Inflammation of a nerve or nerves, often causing pain and loss of function.

Inflammation

A biological response to harmful stimuli, characterized by redness, heat, swelling, and pain as part of the body's effort to heal itself.