1.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?Â Pine trees Spruce treesSample size 20 30Mean trunk diameter (cm) 45 39Sample variance 100 150
1.A field researcher is gathering data on the trunk diameters of mature pine and spruce tr
by Manilla | Aug 3, 2022 | Uncategorized | 0 comments
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