Use the Given Degree of Confidence and Sample Data to Construct

question 18

Multiple Choice

Use the given degree of confidence and sample data to construct a confidence interval for the population mean $\mu$ . Assume that the population has a normal distribution. $n = 30 , \bar { x } = 84.6 , s = 10.5,90 \%$ confidence

• A) \(79.32 < \mu < 89.88\)
• B) \(81.36 < \mu < 87.84\)
• C) \(81.34 < \mu < 87.86\)
• D) \(80.68 < \mu < 88.52\)

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Definitions:

Inhibitory

Characterized by or acting to restrain, hinder, or suppress physiological or psychological action.

Electrical

Pertaining to the technology of electricity; relating to, producing, or operated by electric currents or fields.

Axon

The long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.

Impulses

Electrical signals that travel along the nervous system, enabling communication between neurons.