A Major Airline Company Is Concerned That Its Proportion of Late

question 64

Multiple Choice

A major airline company is concerned that its proportion of late arrivals has substantially increased in the past month.Historical data shows that on the average 18% of the company airplanes have arrived late.In a random sample of 1,240 airplanes,310 airplanes have arrived late.If we are conducting a hypothesis test of a single proportion to determine if the proportion of late arrivals has increased: What is the value of the calculated test statistic?

• A)Z = 6.416
• B)Z = 3.208
• C)Z = -3.208
• D)Z = -6.416
• E)Z = 1.833

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Definitions:

Payor Bank

The bank that is directed by a check or draft to pay a certain amount of money to the person or entity named on the check.

On-Us Item

A banking term referring to a check or draft that is presented for payment by the same bank upon which it is drawn.

Stale Check

A check that is not presented to a bank within six months of its date.

Uniform Commercial Code

A comprehensive set of laws governing all commercial transactions in the United States, intended to standardize and simplify the law relating to commerce.