Can It Be Established At $\alpha$ = 005 That a Majority of Students Favour the Plus/minus Grading

question 109

Essay

Can it be established at
$\alpha$
= 0.05 that a majority of students favour the plus/minus grading system at a university if in a random sample of 500 students,270 favour the system?

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Definitions:

Action Potential

A rapid change in electrical charge across a neuron's cell membrane, allowing for the transmission of nerve impulses.

Excitatory Signals

These are biochemical impulses that promote or increase neural activity or the firing of neurons.

All-or-none Response

A biological principle indicating that a nerve or muscle fiber reacts completely or not at all to a stimulus.

Sodium/Potassium Pump

A vital cell membrane protein that pumps sodium out of cells and potassium into cells, maintaining the necessary concentration gradients for nerve impulse transmission and muscle contractions.