A chemical Company wishes to compare the effectiveness of two types of chemical fertilizers. Fifty acres are planted with each type. The increases in yields per acre of wheat averaged 14.2 baskets for fertilizer 1 and 17.5 baskets for fertilizer 2. The variances for both fertilizers 1 & 2 are known to be 3.7 and 4.2 respectively, C.I for 99%