The Standard Deviation of the Population of Adult Female Spine

question 40

Short Answer

The standard deviation of the population of adult female spine lengths is .92 inches. A random sample of 40 women was selected and the mean spine length was found to be 26 inches.
a. Calculate the standard error of the mean.
b. Use the z test to determine whether this sample could be representative of a the general population of women whose mean spine length is known to be 24 inches.

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Definitions:

Vasopressin

A hormone that regulates water retention in the body and increases blood pressure, playing a key role in homeostasis.

Endorphins

Natural, pain-relieving chemicals produced by the body during activities like exercise, eating, and laughter, often contributing to a sense of well-being.

Chronic Pain

Persistent pain that lasts for months or even years, often significantly affecting a person's quality of life and ability to perform daily tasks.

Circadian Rhythm

The natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.