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Test the null hypothesis of no treatment effect on the number of plant species. Determine the value of the test statistic t. Give your answer to two decimal places.

Test the null hypothesis of no treatment effect on the number of plant species. Determine the value of the test statistic t. Give your answer to two decimal places.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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You might think that increasing the nutrient resources available would elevate the number of plant species that an area could support, but the evidence suggests otherwise. The data in the accompanying table are from the Park Grass Experiment at Rothamsted Experimental Station in the U.K., where grassland field plots have been fertilized annually for the past 150 years (collated by Harpole and Tilman 2007). The number of plant species recorded in 10 plots is given in response to the number of different nutrient types added in the fertilizer treatment (nutrient types include nitrogen, phosphorus, potassium, and so on). Plot 1 2 3 4 6 7 8 9 10 Number of nutrients added 0 0 0 1 2 3 1 3 4 4 Number of plant species 36 36 32 34 33 30 20 23 21 16 Download the data in your preferred format. CSV Excel JMP Mac-Text Minitab PC-Text R SPSS TI CrunchIt Test the null hypothesis of no treatment effect on the number of plant species. Determine the value of the test statistic t. Give your answer to two decimal places.
Transcribed Image Text:You might think that increasing the nutrient resources available would elevate the number of plant species that an area could support, but the evidence suggests otherwise. The data in the accompanying table are from the Park Grass Experiment at Rothamsted Experimental Station in the U.K., where grassland field plots have been fertilized annually for the past 150 years (collated by Harpole and Tilman 2007). The number of plant species recorded in 10 plots is given in response to the number of different nutrient types added in the fertilizer treatment (nutrient types include nitrogen, phosphorus, potassium, and so on). Plot 1 2 3 4 6 7 8 9 10 Number of nutrients added 0 0 0 1 2 3 1 3 4 4 Number of plant species 36 36 32 34 33 30 20 23 21 16 Download the data in your preferred format. CSV Excel JMP Mac-Text Minitab PC-Text R SPSS TI CrunchIt Test the null hypothesis of no treatment effect on the number of plant species. Determine the value of the test statistic t. Give your answer to two decimal places.
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