Question

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

The results of a poll show that the true proportion of students who prefer the new schedule is likely in the interval (0.195,0.245).

What is the point estimate of the proportion of students who prefer the new schedule?



Enter your answer, as a decimal, in the box.

Answer 1

Explanation:

The point estimate is the center of the given interval. Mathematically, that'd be the average or mean of the endpoints of the interval:

0.195 + 0.245

--------------------- = 0.440/2 = 0.220

2

Note that 0.220 is 0.025 above the left endpoint and that 0.220 is 0.025 below the right endpoint, which goes to show that 0.220 is actually in the center of the given interval.