4. 15 loaves of bread, 5-5-5 made according to a different recipe, are baked in 5 different oven positions at the same time. The densities (measured by a real number between 0 and 1) of the so baked loaves are the following: I. II. III. IV. V. 1. 0.95 0.86 0.71 0.72 0.74 2. 0.71 0.85 0.62 0.72 0.64 3. 0.69 0.88 0.51 0.73 0.44 1 Perform two-way ANOVA (without interaction) to test the following hypotheses: a. The choice of recipe does not influence significantly the density (with sign. 0.1) . b. The oven position does not influence significantly the density (with sign. 0.1)