THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 79

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
As part of its quality control program,the Scullia Auto Company (SAC)began inspecting all supplier shipments of steel bars and recording the defect rate according to quality criteria such as strength,dimensional characteristics,etc.When SAC began this program,the defect rate in 100 shipments averaged 9%.A recent report indicated an average defect rate of 2.2% in 136 shipments.The quality control department wants to determine,at the 0.05 level of significance,if this represents a significant improvement in the quality of the steel.
-State the null and alternative hypotheses.

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Definitions:

Chronic Lung Disease

A category of diseases that affect the lungs and other parts of the respiratory system over a long period, leading to decreased lung function.

Oxygen Cautiously

The careful use and administration of oxygen to prevent potential hazards, particularly in medical settings.

Heatstroke

A severe form of hyperthermia resulting from the body overheating, often due to prolonged exposure to or physical exertion in high temperatures, characterized by a body temperature of 104 F (40 C) or higher.

Convection

The transfer of heat through the movement of fluids or gases, often seen in weather patterns and cooking.