Question

One of the leading issues surrounding a recent London, Ontario municipal election was in regard to BRT (Bus Rapid Transit). As part of its pre-election coverage the London Free Press (London's local newspaper) wanted to investigate this hot button issue. With the help of the marketing research firm Forum Research a poll was taken of a random cross section of Londoners. Based on the the survey poll below, establish a 99% confidence interval for those who DISAPPROVE London's BRT plan.

LONDON ONTARIO BRT SURVEY POLL
DISAPPROVE	DISAPPROVE	SUPPORT	NO OPINION	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE
DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE	DISAPPROVE	SUPPORT	NO OPINION	NO OPINION	SUPPORT
DISAPPROVE	DISAPPROVE	NO OPINION	SUPPORT	DISAPPROVE	DISAPPROVE	NO OPINION	DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT
DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE
DISAPPROVE	DISAPPROVE	NO OPINION	SUPPORT	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	NO OPINION
DISAPPROVE	DISAPPROVE	DISAPPROVE	NO OPINION	DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE	DISAPPROVE	SUPPORT
DISAPPROVE	SUPPORT	DISAPPROVE	DISAPPROVE	DISAPPROVE	NO OPINION	DISAPPROVE	SUPPORT	DISAPPROVE	DISAPPROVE	SUPPORT
DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE	SUPPORT	NO OPINION	NO OPINION	NO OPINION	DISAPPROVE
SUPPORT	NO OPINION	SUPPORT	SUPPORT	DISAPPROVE	SUPPORT	DISAPPROVE	NO OPINION	NO OPINION	DISAPPROVE	SUPPORT
SUPPORT	NO OPINION	DISAPPROVE	DISAPPROVE	DISAPPROVE	NO OPINION	NO OPINION	NO OPINION	DISAPPROVE	DISAPPROVE	SUPPORT
DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE
NO OPINION	DISAPPROVE	SUPPORT	SUPPORT	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE
DISAPPROVE	NO OPINION	DISAPPROVE	SUPPORT	SUPPORT	SUPPORT	DISAPPROVE	SUPPORT	DISAPPROVE	SUPPORT	DISAPPROVE
DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE
DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE	NO OPINION	SUPPORT	DISAPPROVE
SUPPORT	DISAPPROVE	SUPPORT	DISAPPROVE	DISAPPROVE	SUPPORT	SUPPORT	DISAPPROVE	SUPPORT	SUPPORT	NO OPINION
DISAPPROVE	NO OPINION	DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT	SUPPORT	SUPPORT	DISAPPROVE	DISAPPROVE	SUPPORT
DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT	SUPPORT	NO OPINION	NO OPINION	NO OPINION	SUPPORT	NO OPINION	NO OPINION
NO OPINION	SUPPORT	DISAPPROVE	SUPPORT	DISAPPROVE	SUPPORT	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE
DISAPPROVE	DISAPPROVE	DISAPPROVE	NO OPINION	DISAPPROVE	NO OPINION	SUPPORT	NO OPINION	SUPPORT	DISAPPROVE	DISAPPROVE
SUPPORT	DISAPPROVE	NO OPINION	NO OPINION	DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE
NO OPINION	SUPPORT	DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT	NO OPINION
NO OPINION	SUPPORT	SUPPORT	DISAPPROVE	SUPPORT	DISAPPROVE	SUPPORT	DISAPPROVE	DISAPPROVE	NO OPINION	DISAPPROVE
NO OPINION	DISAPPROVE	NO OPINION	SUPPORT	SUPPORT	SUPPORT	SUPPORT	SUPPORT	NO OPINION	DISAPPROVE	SUPPORT
DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE
NO OPINION	DISAPPROVE	SUPPORT	DISAPPROVE	SUPPORT	DISAPPROVE	SUPPORT	DISAPPROVE	DISAPPROVE	DISAPPROVE	SUPPORT
NO OPINION	NO OPINION	SUPPORT	DISAPPROVE	DISAPPROVE	SUPPORT	DISAPPROVE	SUPPORT	DISAPPROVE	NO OPINION	SUPPORT

BLANK #1: Is this a question involving mean or proportion? ***ANSWER "MEAN" OR "PROPORTION" (WITHOUT THE QUOTATION MARKS)***

BLANK #2: What is the LOW end of the estimate ***ANSWER TO 2 DECIMALS...FINAL ANSWER IN PERCENT FORM...BE SURE TO INCLUDE UNITS WITH ANSWER...IE. 12.34%***

BLANK #3: What is the HIGH end of the estimate ***ANSWER TO 2 DECIMALS...FINAL ANSWER IN PERCENT FORM...BE SURE TO INCLUDE UNITS WITH ANSWER...IE. 12.34%***

Answer 1

BLANK #1: Is this a question involving mean or proportion?  Proportion

BLANK #2: What is the LOW end of the estimate 52.64%

BLANK #3: What is the HIGH end of the estimate 63.86%

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Here we have the total number of responses=297 and the number who disapproved is x=173.

The proportion who disapproved

The 95% confidence interval is given by