Weights (kg) of poplar trees were obtained from trees planted in a rich and moist region. The trees were given different treatments identified in the accompanying table. Use a 0.05 significance level to test the claim that the four treatment categories yield poplar trees with the same mean weight. Is there a treatment that appears to be most effective? No Treatment Fertilizer Irrigation Fertilizer_and Irrigation 1.27 0.97 0.07 0.83 0.69 0.95 0.76 1.53 0.69 0.58 0.11 0.93 0.07 0.53 0.74 1.55 1.21 0.95 0.92 1.29 A. Determine the null hypothesis and alternative hypothesis. B. Calculate the test statistic. C. What is the P Value? D. Determine the conclusion of the hypothesis test.

Weights (kg) of poplar trees were obtained from trees planted in a rich and moist region. The trees were given different treatments identified in the accompanying table. Use a 0.05 significance level to test the claim that the four treatment categories yield poplar trees with the same mean weight. Is there a treatment that appears to be most effective? No Treatment Fertilizer Irrigation Fertilizer_and Irrigation 1.27 0.97 0.07 0.83 0.69 0.95 0.76 1.53 0.69 0.58 0.11 0.93 0.07 0.53 0.74 1.55 1.21 0.95 0.92 1.29 A. Determine the null hypothesis and alternative hypothesis. B. Calculate the test statistic. C. What is the P Value? D. Determine the conclusion of the hypothesis test.

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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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The average annual miles driven per vehicle in the United States is 11.1 thousand miles, with o = 600 miles. Suppose that a random sample of 31 vehicles owned by residents of Chicago showed that the average mileage driven last year was 10.8 thousand miles. Does this indicate that the average miles driven per vehicle in Chicago is different from (higher or lower than) the national average? Use a 0.05 level of significance. What are we testing in this problem? O single mean O single proportion (a) What is the level of significance? State the null and alternate hypotheses. о Но: р3D 11.1; Hі: р> 11.1 O Ho: H = 11.1; H1: µ > 11.1 O Ho: µ = 11.1; H1: µ # 11.1 о Hо: р 3 11.1; Hi: р# 11.1 O Ho: p = 11.1; H1: p 0.500 O 0.250 < P-value < 0.500 O 0.100 < P-value < 0.250 O 0.050 < P-value < 0.100 O 0.010 < P-value < 0.050 O P-value < 0.010
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Is there a treatment that appears to be most effective in the sandy and dry region?
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