W a statement that interprets the confidence interval , Basic Statistics

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W a statement that interprets the confidence interval

Interpreting Calculator Display In 1920 only 35% of U.S. households had tele- phones, but that rate is now much higher. A recent survey of 4276 randomly selected households showed that 4019 of them had telephones (based on data from the U.S. Census Bureau). Using those survey results and a 99% confidence level, the TI-83 Plus calculator display is as shown.

a. Write a statement that interprets the confidence interval.

b. Based on the preceding result, should pollsters be concerned about results from surveys conducted by telephone?

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