Expedia Would Like to Test the Hypothesis That the Proportion

question 93

Multiple Choice

Expedia would like to test the hypothesis that the proportion of Southwest Airline flights that arrive on- time is less than 0.90. A random sample of 140 United Airline flights found that 119 arrived on- time. Expedia would like to set α = 0.05. The correct hypothesis statement for this hypothesis test would be _______ .

• A)H₀: p c 0.90; H₁: p > 0.90
• B)H₀: p c 0.90; H₁: p × 0.90
• C)H₀: p c 0.90; H₁: p < 0.90
• D)H₀: p = 0.90; H₁: p × 0.90

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Definitions:

Attention

The cognitive process of selectively concentrating on one aspect of the environment while ignoring other things. It is crucial for various mental processes and activities.

Amplitude

The height of a wave from its midpoint to its peak or trough, indicating the strength or intensity of a wave.

Crest

The highest point of a hill or mountain range; also refers to the peak or summit.

Trough

A trough generally refers to a long, narrow container from which animals eat or drink, but in scientific contexts, it can also mean a low point or minimum phase in a cycle, such as in economics or meteorology.