Agricultural research suggests that the final corn yield in bushels per acre (y) is linearly related to the number of inches between rows (x). Suppose the true regression line is y = XXXXXXXXXX1x. a....

Agricultural research suggests that the final corn yield in bushels per acre (y) is linearly related to the number of inches between rows (x). Suppose the true regression line is y = 197.5 - 6.1x.

a. Find the expected yield when there are 15 inches between rows.

b. How much change in yield is expected if the distance between rows decreases by 2 inches?

c. Suppose
 bushels per acre. Find the probability that an observed value of yield is between 90 and 95 bushels per acre when rows are 17 inches apart.

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