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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The Answer of 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.

A Telephone Company Claims That 20% of Its Customers Have α\alphaα

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