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QUESTION 10 19A telecommunication company wants to estimate the proportion of households that would purchase an additional telephone line if it were made available at

QUESTION 10

19A telecommunication company wants to estimate the proportion of households that would purchase an additional telephone line if it were made available at a substantially reduced installation cost. Data are collected from a random sample of 500 households. The results indicate that 160 of the households would purchase the additional telephone line at a reduced installation cost. Construct a 95% confidence interval for the population proportion of households that would purchase the additional telephone line.

A.

[0.279, 0.361]

B.

[0.286, 0.354]

C.

[0.271, 0.369]

D.

[0.271, 0.354]

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