Crop researchers are interested in the productivity of a new variety of corn. They plant 123 plots with a randomly-selected seeds of the new variety, record the yield in bushels per acre, and find that a 99% confidence interval for the true mean yield is 118 to 130 bushels per acre.
a. What is the point estimate from this sample?
b. What is the margin of error?
c. interpret the 99% confidence interval 118 to 130 in the context of the problem
d. Interpret the confidence level of 99% in the context of the problem