Consider the Following to Answer the Question(s) Below

question 33

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:

-The correct null and alternative hypotheses are

• A) H0 : µ = 20 and HA : µ > 20.
• B) H0 : µ = 20 and HA : µ ≠ 20.
• C) H0 : µ = 20 and HA : µ < 20.
• D) H0 : µ > 20 and HA : µ = 20.
• E) H0 : µ < 20 and HA : µ > 20.

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Definitions:

EEG Recordings

Electrical recordings of brain activity obtained through electrodes placed on the scalp, used in neuroscience research.

Alpha Waves

Brain wave patterns associated with relaxed and calm states of mind, typically present when a person is awake but relaxed.

Deep Relaxation

A state of profound mental and physical calm achieved through techniques such as meditation, guided imagery, or deep breathing exercises.

REM Sleep

A stage of sleep characterized by rapid eye movements, during which dreaming often occurs and brain activity resembles that of an awake state.