What is your conclusion regarding Upper H 0? A. Reject Upper H 0. There is not sufficient evidence at the alphaequals0.05 level of significance to conclude that the clarity of the lake is improving. B. Reject Upper H 0. There is sufficient evidence at the alphaequals0.05 level of significance to conclude that the clarity of the lake is improving. C. Do not reject Upper H 0. There is not sufficient evidence at the alphaequals0.05 level of significance to conclude that the clarity of the lake is improving. D. Do not reject Upper H 0. There is sufficient evidence at the alphaequals0.05 level of significance to conclude that the clarity of the lake is improving