The results of a survey show that the percent of students in an algebra ii class who want to have their grades scored on a curve is in the interval [48.2, 56.4]. a. what is the point estimate for the percent who want to have their grades scored on a curve? b. what is the poll’s margin of error? c. do you think their class should have their grades scored on a curve? which statistic influenced your answer the most? explain.

A. The point estimate would be the average of the interval boundaries, which is the average of 48.2 and 56.4. This gives a point estimate of 52.3%.
b. The margin of error is the distance from either interval boundary to the point estimate. 56.4 - 52.3 = 4.1%.
c. Assuming this is solely going to be based on the class' decision, their grades should be scored on a curve. Although the margin of error is high and this seems to not have a significant distance from 50%, there is no "middle ground" in this option. We must either grade on a curve or not, and if we must choose one, we have to use to point estimate that is just slightly above 50%.

The answer is