A Telephone Company Claims That 20% of Its Customers Have $\alpha$

question 103

Essay

A telephone company claims that 20% of its customers have at least two telephone lines. The company selects
a random sample of 500 customers and finds that 88 have two or more telephone lines. If α $\alpha$ = 0.05, test the
companyʹs claim using confidence intervals.

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Definitions:

Classroom-Based Interventions

Educational strategies or programs implemented within a classroom setting aimed at improving student behaviors, learning, and overall development.

Symptoms/Reactions

Signs or indications of a physical or psychological condition, or the observable response of a person to a particular situation.

Accurate Information

Information that is correct, precise, and free from errors or distortions.

Services Available

A broad term referring to the various forms of assistance, support, or professional help that can be accessed by individuals or organizations.