A Random Sample of 250 Students at a University Finds $15.6 \pm .324$

question 49

Short Answer

A random sample of 250 students at a university finds that these students take a mean of 15.6 credit hours per quarter with a standard deviation of 2.2 credit hours. Estimate the mean credit hours taken by a student each quarter using a 98% confidence interval. Round to the nearest thousandth. A) $15.6 \pm .324$
B) $15.6 \pm .219$
C) $15.6 \pm .021$
D) $15.6 \pm .014$

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Definitions:

Multipolar Neuron

A multipolar neuron is a type of neuron that has one axon and multiple dendrites, allowing it to receive and integrate a large number of inputs from other neurons.

Glia Cells

Cells in both the central and peripheral nervous systems that are not neurons, but provide support, protection, and nutrition to the neuronal cells.

Subcutaneous Adipose Tissue

This is the layer of fat that is located just beneath the skin, serving as insulation and an energy reserve for the body.

Skin Wound

A disruption of the normal structure and function of the skin and underlying soft tissue, typically resulting from physical damage.