Question

A survey of a random sample of voters shows that 29% plan to vote for Martin and 71% plan to vote for

Lang. The survey has a margin of error of ±7%. What is the range for the percentage of voters who plan to

vote for Lang?

Answer 1

Range=±7%

Martin=71%, Lang=29%

Range for Martin=71%±7%

So, highest %=71%+7%=78%

Lowest %=71%-7%=64%

Therefore,range for Martin is between 64%-78% which is 14%