Carmela randomly selected 65 stamps from a stamp collection. Eleven of these were commemorative stamps.

What is the interval estimate for the proportion of commemorative stamps in the entire collection if the sampling method had a margin of error of ±0.025 ?

Question

Carmela randomly selected 65 stamps from a stamp collection. Eleven of these were commemorative stamps.

What is the interval estimate for the proportion of commemorative stamps in the entire collection if the sampling method had a margin of error of  ±0.025 ?

slurvburg · Answer

(0.415, 0.465)

(0.145, 0.195)

(0.085, 0.135)

(0.035, 0.085)

ihy · Answer

@slurvburg wrote:

(0.415, 0.465) (0.145, 0.195) (0.085, 0.135) (0.035, 0.085)

How do you know this?