Question

plz help
Which of the following estimates at a 95% confidence level most likely comes from a small sample?

A. 53% (±21%)
B. 59% (±5%)
C. 67% (±7%)
D. 48% (±3%)

Answer 1

well, when we consider the formula for a confidence interval

x +- ts/sqrt(n)

we conclude that a small sample will produce the largest confidence interval

Answer 2

so look for the biggest number after the ± sign

Answer 3

thank you !