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A field researcher is gathering data on the trunk diameters of mature pine and spruce trees in a certain area. The following are the results of his random sampling. Can he conclude, at the 0.10 level of significance, that the average trunk diameter of a pine tree is greater than the average diameter of a spruce tree?
Mean trunk diameter (cm)
What is the test value for this hypothesis test?
Apr 04 2020 View more View Less
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