An agricultural field test compares two varieties of corn, silver queen as well as country gentlemen. The researches takes 10 plots and divides each of these plots in half. Each plot has similar amount of sun light, shade, quality of soil and irrigation. The variety of corn is randomly selected for each half of a plot. After the harvest, the yield of corn is measured for each half plot at each location. The yield from silver queen was compared to the yield of country gentlemen. Note: Differences were taken by taking Silver Queen - Country Gentlemen
The 95% confidence interval for the mean is (-0.223, 0.988).
What is the correct interpretation of this interval?
A. There is convincing evidence that variety A has a higher mean yield.
B. There is not enough evidence to say that variety A has a higher mean yield then variety B.
C. We have sufficient evidence to show that variety B has a higher mean yield than variety A.
D. There is evidence to show that there is a difference between variety A and variety B.