Maurice Tutor

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Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 398 Weeks Ago, 1 Day Ago
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 12 Nov 2017 My Price 4.00

amount of organic matter

55.   A random sample of soil specimens was obtained, and the amount of organic matter (%) in the soil was determined for each specimen, resulting in the ac- companying data (from Engineering Properties of Soil, Soil Sci., 1998: 93—102).

 

1.10

5.09

0.97

1.59

4.60

0.32

0.55

1.45

0.14

4.47

1.20

3.50

5.02

4.67

5.22

2.69

3.98

3.17

3.03

2.21

0.69

4.47

3.31

1.17

0.76

1.17

1.57

2.62

1.66

2.05

 

 

 

The values of the sample mean, sample standard de- viation, and (estimated) standard error of the mean are 2.481, 1.616, and .295, respectively. Does this data suggest that the true average percentage of or- ganic matter in such soil is something other than 3%? Carry out a test of the appropriate hypotheses at signi cance level .10 by rst determining the P- value. Would your conclusion be different if a = .05 had been used? (Note: A normal probability plot of the data shows an acceptable pattern in light of the reasonably large sample size.)

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Maurice Tutor
(5)
Status NEW Posted 12 Nov 2017 01:11 PM My Price 4.00

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