One concern about the depletion of the ozone layer is that the increase in UV light will decrease crop yields. An experiment was conducted in a green house where soybean plants were exposed to varying levels of UV levels - measured in Dobson units (du.). At the end of the experiment the yield (kg) was measured. A regression analysis was performed with the following results: The regression model is:
Answer
a. Y = 3.98 - .05(UV)
b. Y = -.05 + 3.98(UV)