A scientist was interested in how monkeys learn to perform a task. The task was to retrieve a coconut from the opposite side of a river. 15 wild monkeys were assigned to one of three conditions: observing a monkey (they watched another monkey retrieve the coconut by building across the stream}, observing a human (they watched a human solve the task}, banana reward (they were allowed to do what they wanted but every time they engaged in behaviour that facilitated solving the task they were rewarded with a banana. After learning the monkeys were required to solve the problem again and the time taken to solve the problem was measured. No treatment 15 8 13 13 11.0 Mean ?. U 8. 0 14.5 Variance 35. 0 25.0 Grand mean 8.5? Grand variance 24.57 a. Perform a one-way ANOVA by hand to test the hypothesis that the treatments will have different effects. b. Do the pairwise comparisons using Mmethod