Expedia Would Like to Test the Hypothesis That the Proportion

question 91

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. Which one of the following statements is true?

• A)Because the p- value is less than α, we reject the null hypothesis and conclude that the proportion of United Airline flights that arrive on- time is less than 0.90.
• B)Because the p- value is greater than α, we reject the null hypothesis and cannot conclude that the proportion of United Airline flights that arrive on- time is less than 0.90.
• C)Because the p- value is greater than α, we fail to reject the null hypothesis and cannot conclude that the proportion of United Airline flights that arrive on- time is less than 0.90.
• D)Because the p- value is less than α, we fail to reject the null hypothesis and cannot conclude that the proportion of United Airline flights that arrive on- time is less than 0.90.

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Definitions:

Intellectual Disability

A term used when there are limitations in mental functioning and in skills such as communicating, taking care of oneself, and social skills. These limitations will cause a child to learn and develop more slowly than a typical child.

Behavioral Problems

Refers to actions or behaviors that are disruptive or inappropriate compared to the expected norms for a person's age and culture.

Pays Attention

Refers to the act of focusing cognitive resources on a specific stimulus or task, often discussed in the context of learning and perception.

Receptive Language Disorder

A condition characterized by difficulties in understanding or processing language that is heard or read.