Rapid drainage of floodwater is crucial to prevent damage during heavy rains. Several designs for a drainage canal were considered for a certain city. Each designs was tested five times, to determinehow longit took to drain the water in a reservoir. The following table pesents the drainage times, in minutes. Channel Type Drainage Time 1 41.4 43.4 50.5 41.2 2 38.7 48.3 51.1 38.3 3 32.6 33.7 34.8 22.5 4 26.3 30.9 33.3 23.8 5 44.9 47.2 48.5 37.1 a. Construct an ANOVA table. b. Can you conclude that there is a difference in the mean drainage times for the different channel designs? use the a=0.01 level of significance.
Rapid drainage of floodwater is crucial to prevent damage during heavy rains. Several designs for a drainage canal were considered for a certain city. Each designs was tested five times, to determinehow longit took to drain the water in a reservoir. The following table pesents the drainage times, in minutes.
Channel Type Drainage Time
1 41.4 43.4 50.5 41.2
2 38.7 48.3 51.1 38.3
3 32.6 33.7 34.8 22.5
4 26.3 30.9 33.3 23.8
5 44.9 47.2 48.5 37.1
a. Construct an ANOVA table.
b. Can you conclude that there is a difference in the mean drainage times for the different channel designs? use the a=0.01 level of significance.
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