At One School, the Mean Amount of Time That Tenth-Graders $\mathrm { H } _ { 0 } : \mu = 18.4$

question 17

Multiple Choice

At one school, the mean amount of time that tenth-graders spend watching television each week is 18.4 hours. The principal introduces a campaign to encourage the students to watch less television.
One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching television per week has decreased. Formulate the null and alternative hypotheses for the study described.

• A) \(\mathrm { H } _ { 0 } : \mu = 18.4\) hours
• \(\mathrm { H } _ { \alpha } : \mu \neq 18.4\) hours
• B) \(H _ { 0 } : \mu = 18.4\) hours
• \(\mathrm { H } _ { \alpha } : \mu < 18.4\) hours
• C) \(\mathrm { H } _ { 0 } : \mu \geq 18.4\) hours
• \(\mathrm { H } _ { \alpha } : \mu < 18.4\) hours
• D) \(\mathrm { H } _ { 0 } : \mu = 18.4\) hours
• \(\mathrm { H } _ { \alpha } : \mu > 18.4\) hours

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Definitions:

Visual

Relating to sight or the ability to see, including the processing and interpretation of visual stimuli by the brain.

Effortful

Describes tasks or processes that require a significant amount of mental or physical effort to be completed.

Connectionism

A theoretical framework for understanding the mind that relates mental processes to the networks of interconnected units, resembling the way neural networks function.

Neural Networks

Computational models inspired by the human brain's structure and function, used in machine learning and artificial intelligence to process complex data patterns.