An agricultural field test compares two varieties of corn, silver queen and country gentlemen. The researches takes 10 plots and divides each of these plots in half. Each plot has a similar amount of sun light, shade, quality of soil and irrigation. The variety of corn is randomly chosen 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.