It Is Desired to Test $H _ { 0 } : \mu = 55$

question 93

Multiple Choice

It is desired to test $H _ { 0 } : \mu = 55$ against $H _ { \mathrm { a } } : \mu < 55$ using $\alpha = .10$ . The population in question is uniformly distributed with a standard deviation of 15 . A random sample of 49 will be drawn from this population. If $\mu$ is really equal to 50 , what is the power of this test?

• A) .8531
• B) .3531
• C) .2938
• D) .1469

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Definitions:

All-or-none Response

A principle that states a neuron either fires at full strength or not at all in response to stimulation.

Action Potential

An action potential is a rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane that is characteristic of excitable cells, such as neurons, as a means of transmission of neural information.

Graded Response

A response that varies in magnitude according to the intensity of the stimulus.

Repolarization

The process of restoring the resting state in a neuron or muscle cell after depolarization, typically signifying the recovery phase of an action potential.