The average yield of corn (bushels per acre) for Iowa counties during 2021 follow a bell-shaped (symmetric and unimodal) distribution with a mean of 176.5 bushels per acre and a standard deviation of 23.5 bushels per acre. Use the 68-95-99.7 Rule (Empirical Rule) to answer the following questions

Use the template above to create a labeled approximate distribution curve for the average corn yield (bushels per acre) for Iowa counties during 2021. On this graph numerically label the mean (iv), the center 68% (iii) and (v), the center 95% (ii) and (vi) and the center 99.7% (i) and (vii), approximately.

(b) The middle 68% of counties have a corn yield between what two values approximately? Report the two values in the two following parts: i. Report the lower endpoint. ii. Report the upper endpoint.