Researchers Claim That 40 Tissues Is the Average Number of Tissues

question 31

Multiple Choice

Researchers claim that 40 tissues is the average number of tissues a person uses during the course of a cold.The company who makes Puffs brand tissues thinks that fewer of their tissues are needed.What are their null and alternative hypotheses?

• A) H₀: \(\mu\) = 40 vs.H₁: \(\mu\) \(\gt\) 40
• B) H₀: \(\mu\) = 40 vs.H₁: \(\mu\)\(\lt\)40
• C) H₀:=40 vs.H₁:\(\lt\)40
• D) H₀: \(\mu\) \(\lt\) 40 vs.H₁: \(\mu\) = 40

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Definitions:

Trachea

The windpipe; a tube that connects the pharynx and larynx to the lungs, allowing the passage of air.

Epiglottis

Structure that covers the glottis, the air-tract opening, during the process of swallowing.

Bronchioles

The small passages in the lungs that lead from the bronchi to the alveoli, involved in the process of breathing.

Saliva

A clear liquid secreted by the salivary glands in the mouth, containing enzymes that aid in the digestion of carbohydrates and serve as a lubricant for food.