Nacirema Airlines Is Buying a Fleet of New Fuel-Efficient Planes

question 86

Multiple Choice

Nacirema Airlines is buying a fleet of new fuel-efficient planes.The HogJet and the LitheJet both meet their price and performance needs,and both planes meet EPA noise guidelines.However,the quieter plane is preferred.Each plane is flown through a typical takeoff and landing sequence 10 times,while remote sensors at ground level record the noise levels (in decibels) .The table below summarizes the sound level tests using Excel's default level of significance ( = 0.05) . If we switched from  = .05 to  = .005 in a two-tailed test of means,our assumption about variances (assumed equal or assumed unequal) would:

• A) affect the decision.
• B) not affect the decision.
• C) require a new analysis.

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Definitions:

Parol Evidence Rule

A legal principle that prevents parties to a written contract from presenting extrinsic evidence of terms of the contract that contradict, modify, or vary contractual terms agreed to in writing.

Common Law

A body of unwritten laws based on legal precedents established by the courts, as opposed to statutory laws written by legislative bodies.

Article 2

Often associated with the Uniform Commercial Code (UCC) in the United States, governing the sale of goods and transactions.

UCC

The Uniform Commercial Code represents an extensive collection of statutes that regulate business dealings in the United States.