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The article “Organic Recycling for Soil Quality

Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi ISBN: 9780073401331 38

Solution for problem 1E Chapter 9.2

Statistics for Engineers and Scientists | 4th Edition

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Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi

Statistics for Engineers and Scientists | 4th Edition

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Problem 1E

The article “Organic Recycling for Soil Quality Conservation in a Sub-Tropical Plateau Region” (K. Chakrabarti, B. Sarkar, et al., J. Agronomy and Crop Science, 2000:137-142) reports an experiment in which soil specimens were treated with six different treatments, with two replicates per treatment, and the acid phosphate activity (in μmol p -nitrophenol released per gram of oven-dry soil per hour) was recorded. An ANOVA table for a one-way ANOVA is presented in the following box.

The treatment means were

a. Can you conclude that there are differences in acid phosphate activity'among the treatments?

b. Use the Tukey-Kramer method to determine which pairs of treatment means, if any, are different at the 5% level.

c.use the Bonferroni method to determine which pairs of treatment means, if any, are different at the 5% level

d.Which method is more powerful in this case, the Tukey-Kramer method or the Bonferroni method?

e.The experimenter notices that treatment A had the smallest sample mean, while treatment B had the largest. Of the Fisher LSD method, the Bonferroni method, and the Tukey-Kramer method, which, if any, can be used to teSt the hypothesis that these two treatment means are equal?

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Social Work Research Dr. Choi Week 1 Monday, August 22, 2016 Introduction to the Class ● “Social work values & missions continue in social work research.” Something to remember throughout this course. ○ As we’re competing against similar fields, research helps empirically validate social work as a profession. Wednesday, August 24, 2016 Chapter 1: Why Study Research ● Reasons Brainstormed in Class ○ Funding ­ for example, different boards give money to agencies that provide certain services. You salaries might be funded through those

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Chapter 9.2, Problem 1E is Solved
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Textbook: Statistics for Engineers and Scientists
Edition: 4
Author: William Navidi
ISBN: 9780073401331

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