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:

Oxygen

A chemical element with symbol O and atomic number 8, essential for aerobic respiration in living organisms and a component of the Earth's atmosphere.

Multicellular Eukaryote

An organism made up of multiple cells that have a nucleus and organelles, including animals, plants, and fungi.

Aerobic Respiration

A metabolic process in which cells convert biochemical energy from nutrients into ATP, with oxygen as the final electron acceptor.