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.

---

Definitions:

Aggregate Supply Curve

A graphical representation showing the relationship between the overall price level in an economy and the quantity of goods and services produced.

Resource Prices

The cost of inputs used in the production of goods and services, such as raw materials, labor, and capital.

Patent Protection

Legal rights granted to inventors to exclusively make, use, or sell their inventions for a certain period.

Aggregate Demand

The total demand for all goods and services in an economy at various price levels, during a specific time period.