Shown below are average daily shipments of for four brands of popular automobiles. Compare the means of these items using the one-way ANOVA method. Assume normal distribution.
Honda: 25.5, 27.0, 22.2, 21.9, 28.0
Nissan: 24.3, 27.1, 26.0, 21.2, 26.5
Toyota: 22.6, 27.2, 22.8, 26.77, 24.9
Hyundai: 27.4, 21.9, 24.6, 19.5, 22.4
How do it:
A. According to the resulting p- value, are the means the same? Explain.
B. Examining the summary data (top section), which brand ships more cars? (on average)