Question: (a) According to a report in the Roanoke Times & World-News, approximately 2/3 of 1600 adults polled by telephone said they think the space shuttle

(a) According to a report in the Roanoke Times

& World-News, approximately 2/3 of 1600 adults polled by telephone said they think the space shuttle program is a good investment for the country.

Find a 95% confidence interval for the proportion of American adults who think the space shuttle program is a good investment for the country.

(b) What can we assert with 95% confidence about the possible size of our error if we estimate the proportion of American adults who think the space shuttle program is a good investment to be 2/3?

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