Your friend claims that larch trees and birch trees reach the same average height in your county when fully grown. To test this claim, you randomly sample 31 larch trees and 32 birch trees from your county. The sample means were 61.5 ft (larch) and 59 ft (birch); the sample standard deviations were both 3 ft. At the 5% significance level, can you conclude that there is a difference in height between these two species of trees?
Question 13 options:
I can't really conclude that the average larch is taller.
I can conclude that the average larch is taller, but only at a 1% significance level.
Yes, I can conclude that the average larch is taller.
No, the average larch is not taller.
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