Use the Traditional Method to Test the Given Hypothesis

question 121

Essay

Use the traditional method to test the given hypothesis. Assume that the population is normally distributed and that the sample has been randomly selected.
-A manufacturer uses a new production method to produce steel rods. A random sample of 17 steel rods resulted in lengths with a standard deviation of 2.4 cm. At the 0.10 significance level, test the claim that the new production method has lengths with a standard deviation different from 3.5 cm, which was the standard deviation for the old method.

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Definitions:

Neurotransmitter

A chemical substance released at the end of a nerve fiber by the arrival of a nerve impulse, which diffuses across the synapse or junction, causing the transfer of the impulse to another nerve fiber, a muscle fiber, or some other structure.

Cell body

The main part of a neuron or other cell, containing the nucleus and various organelles.

Organelles

Specialized structures within a cell that perform specific functions necessary for the cell's life.

Axon

A type of nerve fiber that is typically long and branches far from the cell body. Its function is to send information away from the cell body.