Question

A survey of 1150 American adults, conducted by telephone, was designed to measure beliefs about apocalyptic predictions. One of the results reported was that 61% of the sample said that they believe the world will come to an end.

a. Calculate the standard error of the sample proportion who believe that the world will come to an end. (Round your answer to three decimal places.)

The standard error of the sample proportion is .

b. Calculate a 95% confidence interval for the population proportion. (Round your answer to three decimal places.)

The interval is to .