Braking distance was evaluated for 4 different brake materials. Run an analysis of variance to determine if there is a difference in treatments? Use the six steps of hypothesis testing at a 0.05 level of significance. Use the below data. Disk Material 1 Disk Material 2 Disk Material 3 Disk Material 4
69.8 78.1 77.7 90.6
65.6 81 80.9 91
71.7 81.9 80.8 89.4
70.5 81.8 79.8 88.1
68 78.8 81.1 87.5
69.3 78.9 82 92
71 81.4 80 90.7
68.8 82.2 80.8 88.4
66.7 79.8 80.9 89.7
72 76.7 79.8 88.1
72.8 80.1 80.1 89.4
67.2 78.7 80.4 89.2

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Step-by-step explanation:

3+1

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b

50

step-by-step explanation: