From a Population Consisting of 8,000 Elements, a Sample of Size

question 12

Essay

From a population consisting of 8,000 elements, a sample of size 121 is selected. The sample has a mean of 4,000 and a standard deviation of 600.
a.Estimate the standard error of the mean.
b.Develop an approximate 95% confidence interval for the population mean.
c.Estimate the population total.
d.Develop an approximate 95% confidence interval for the population total.

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Definitions:

Tuberosity

A large rounded projection on a bone, often serving as an attachment point for muscles and ligaments.

Brachioradialis

A muscle of the forearm that flexes the forearm at the elbow, especially when the forearm is in a position midway between pronation and supination.

Biceps Brachii

A large muscle on the front of the upper arm responsible for flexing the forearm and supinating the forearm.

Forced Inspiration

The act of taking a deep breath with the aid of muscles other than the diaphragm, such as the neck and chest muscles.