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Mathematics 20 Online
OpenStudy (anonymous):

Suppose a study estimated that 78% of the residents of a town (with an error range of ±8 percentage points at 95% confidence) favor expanding the park and recreation department. Which of the following percentages of the town's residents may favor expanding the park and recreation department? A. 62% B. 72% C. 92% D. 52%

OpenStudy (anonymous):

@mathstudent55

OpenStudy (anonymous):

@SolomonZelman

OpenStudy (anonymous):

@Compassionate

OpenStudy (perl):

did you add and subtract 8 to 78% ?

OpenStudy (anonymous):

yes i have no clue what to do i got 7.22 and 8.78

OpenStudy (anonymous):

any ideas? @perl

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