Out of 500 people sampled, 305 preferred Candidate A. Round to three decimals. Based on this estimate, what proportion (as a decimal) of the voting population ( p ) prefers Candidate A?

Question

Out of 500 people sampled, 305 preferred Candidate A. Round to three decimals.

Based on this estimate, what proportion (as a decimal) of the voting population (p) prefers Candidate A?

Answer:

Compute a 95% confidence interval, and give your answers to 3 decimal places.

Answer 1

305/500 = 0.61 = 61%

305/500 = 305/200 x 1 = 305/200 x 2/2 = 305(2)/500(2) = 610/1000 = 0.610 = 61.000% = 61% exactly