Six bean plants had their carbohydrate concentrations (in percent by weight) measured both in the shoot and in the root. The following results were obtained: Plant 1 2 3 4 5 6 Shoot 4.51 5.90 4.14 4.54 5.29 4.54 Root 3.90 5.49 3.78 4.12 4.97 3.95 Can you conclude that there is a difference in mean concentration between the shoot and the root? Use the a= 0.1 level of significance.