How does logging in a tropical rain forest affect the forest in later years? Researchers compared...
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How does logging in a tropical rain forest affect the forest in later years? Researchers compared forest plots in Borneo that had never been logged (Group 1) with similar plots that had been logged one year earlier (Group 2), and eight years earlier (Group 3). Although the study was not an experiment, the authors explained why we can consider the plots to be randomly selected. The data appear in the table. The variable Trees is the count of trees in a plot; Species is the count of tree species in a plot. The variable Richness is the number of species divided by the number of individual trees. Data from a study of logging in Borneo Group Trees Species Richness Group Trees Species Richness 27 22 0.81481 18 15 0.83333 1. 22 18 0.81818 17 15 0.88235 1. 29 22 0.75862 14 12 0.85714 1. 21 20 0.95238 14 13 0.92857 19 15 0.78947 2 2 2 1.00000 1 33 21 0.63636 17 15 0.88235 16 13 0.81250 2 19 8. 0.42105 20 13 0.65000 3 18 17 0.94444 1. 24 19 0.79167 3 1.00000 1. 27 13 0.48148 3 22 18 0.81818 28 19 0.67857 3 15 14 0.93333 1 27 13 0.48148 3 22 18 0.81818 1 28 19 0.67857 3 15 14 0.93333 1 19 15 0.78947 3 18 18 1.00000 12 11 0.91667 3 19 15 0.78947 2 12 11 0.91667 3 22 15 0.68182 15 14 0.93333 3 12 10 0.83333 9 0.77778 3 12 12 1.00000 20 18 0.90000 To access the complete data set, click the link for your preferred software format: Excel Minitab JMP SPSS TI R Mac-TXT PC-TXT CSV CrunchIt! It was found that there is strong evidence that logging is related to differences in the mean number of spe found that it would be risky to use ANOVA to analyze richness, since conditions were not met. Use softw effect of logging on the number of trees. 2. 2. 2. 2. (b) Carry out the ANOVA. Report the F statistic and its P-value. (Enter your answer for F rounded to two decimal places. Enter your answer for the P-value rounded to four decimal places.) F: P: How does logging in a tropical rain forest affect the forest in later years? Researchers compared forest plots in Borneo that had never been logged (Group 1) with similar plots that had been logged one year earlier (Group 2), and eight years earlier (Group 3). Although the study was not an experiment, the authors explained why we can consider the plots to be randomly selected. The data appear in the table. The variable Trees is the count of trees in a plot; Species is the count of tree species in a plot. The variable Richness is the number of species divided by the number of individual trees. Data from a study of logging in Borneo Group Trees Species Richness Group Trees Species Richness 27 22 0.81481 18 15 0.83333 1. 22 18 0.81818 17 15 0.88235 1. 29 22 0.75862 14 12 0.85714 1. 21 20 0.95238 14 13 0.92857 19 15 0.78947 2 2 2 1.00000 1 33 21 0.63636 17 15 0.88235 16 13 0.81250 2 19 8. 0.42105 20 13 0.65000 3 18 17 0.94444 1. 24 19 0.79167 3 1.00000 1. 27 13 0.48148 3 22 18 0.81818 28 19 0.67857 3 15 14 0.93333 1 27 13 0.48148 3 22 18 0.81818 1 28 19 0.67857 3 15 14 0.93333 1 19 15 0.78947 3 18 18 1.00000 12 11 0.91667 3 19 15 0.78947 2 12 11 0.91667 3 22 15 0.68182 15 14 0.93333 3 12 10 0.83333 9 0.77778 3 12 12 1.00000 20 18 0.90000 To access the complete data set, click the link for your preferred software format: Excel Minitab JMP SPSS TI R Mac-TXT PC-TXT CSV CrunchIt! It was found that there is strong evidence that logging is related to differences in the mean number of spe found that it would be risky to use ANOVA to analyze richness, since conditions were not met. Use softw effect of logging on the number of trees. 2. 2. 2. 2. (b) Carry out the ANOVA. Report the F statistic and its P-value. (Enter your answer for F rounded to two decimal places. Enter your answer for the P-value rounded to four decimal places.) F: P:
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Answer rating: 100% (QA)
b F statistic value is 1143 and the Pvalue is 00002 The best conclusion is There is strong evidence ... View the full answer
Related Book For
Visualizing Environmental Science
ISBN: 978-1119147527
4th edition
Authors: Linda R. Berg, David M. Hassenzahl, Mary Catherine Hager
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