A According To A Report In The Roanoke Times Approximately 2 3 Of 1000 Adults Polled By Telephone Said They Think The 1 (15.69 KiB) Viewed 28 times
A According To A Report In The Roanoke Times Approximately 2 3 Of 1000 Adults Polled By Telephone Said They Think The 2 (6.2 KiB) Viewed 28 times
(a) According to a report in the Roanoke Times, approximately 2/3 of 1000 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 be asserted with 95% confidence about the possible size of the error if the proportion of American adults who think the space shuttle program is a good investment is estimated to be 2/3? Click here to view page 1 of the normal probability table. Click here to view page 2 of the normal probability table.
(a) The confidence interval is 0.647 <p< 0.687. (Round to three decimal places as needed.) (b) The possible size of the error with the given estimate is 0.020. (Round to three decimal places as needed.)
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