Use the Traditional Method to Test the Given Hypothesis

question 4

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 2.1 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:

Fetal Development

The process of growth and maturation of a fetus inside the mother's womb.

Tracheostomy

A surgical procedure to create an opening through the neck into the trachea to provide an airway or to remove secretions from the lungs.

Pulse Oximetry

A non-invasive method to measure the oxygen saturation level of the blood, indicating how well oxygen is being sent to parts of the body furthest from the heart.

Mechanical Ventilated

The use of a machine to support or take over the respiratory process for individuals unable to breathe adequately on their own.