Acertain region would like to estimate the proportion of voters who intend to participate in upcoming elections. a pilot sample of 25 voters found that 21 of them intended to vote in the election. determine the additional number of voters that need to be sampled to construct a 94% interval with a margin of error equal to 0.04 to estimate the proportion. the region should sample additional voters.

272

Step-by-step explanation:

Given : A pilot sample of 25 voters found that 21 of them intended to vote in the election.

i.e.

and the voters sampled = 25

Significance level :

Critical value :

Margin of error: E = 0.04

The formula to find the sample size is given by :-

Then, the additional voters need to be sample =

Hence, the region should sample 272 additional voters.

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.