Ecologists mapped a large Canadian forest plot dominated the Douglas fir, with an understory of western hemlock and western red cedar. The two-way table below records all 2,050 trees in the plot by species and life stage. Sapling trees (young trees shorter than 1.3 meters) are indicative of the future of the forest. Test the relationship between species and life stage. What proportion of trees would you expect of be saplings if the null hypothesis was true? Also what would be the null and alternative hypothesis? How many western red cedars would you expect to be saplings if the null hypothesis was true?

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.6: Permutations And Combinations
Problem 30E
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Ecologists mapped a large Canadian forest plot dominated the Douglas fir, with an understory of western hemlock and western red cedar. The two-way table below records all 2,050 trees in the plot by
species and life stage. Sapling trees (young trees shorter than 1.3 meters) are indicative of the future of the forest. Test the relationship between species and life stage.

What proportion of trees would you expect of be saplings if the null hypothesis was true? Also what would be the null and alternative hypothesis?

How many western red cedars would you expect to be saplings if the null hypothesis was true?

Dead Live Sapling
Western red cedar
Douglas fir
Western hemlock
48 214
154
416
326 324
652
474 420
88
982
848 958
244 2050
Transcribed Image Text:Dead Live Sapling Western red cedar Douglas fir Western hemlock 48 214 154 416 326 324 652 474 420 88 982 848 958 244 2050
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