Maurice Tutor

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About Maurice Tutor

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Expertise:
Algebra,Applied Sciences See all
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, 2 Days Ago
Questions Answered: 66690
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Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

Experience

  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 17 Jan 2018 My Price 8.00

Virginia Tech

5.28 In a study conducted at Virginia Tech on the development of ectomycorrhizal, a symbiotic relation- ship between the roots of trees and a fungus, in which minerals are transferred from the fungus to the trees and sugars from the trees to the fungus, 20 northern red oak seedlings exposed to the fungus Pisolithus tinc- torus were grown in a greenhouse. All seedlings were planted in the same type of soil and received the same amount of sunshine and water. Half received no ni-

 

 

trogen at planting time, to serve as a control, and the other half received 368 ppm of nitrogen in the form NaNO3. The stem weights, in grams, at the end of 140 days were recorded as follows:

 

Brand A: Brand B:

 

x¯1= 36,300 kilometers, s1 = 5000 kilometers.x¯2= 38,100 kilometers, s2 = 6100 kilometers.

 

No Nitrogen Nitrogen

0.32 0.26

0.53 0.43

0.28 0.47

0.37 0.49

0.47 0.52

0.43 0.75

0.36 0.79

0.42 0.86

0.38 0.62

0.43 0.46

Construct a 95% con?dence interval for the di?erence in the mean stem weight between seedlings that re- ceive no nitrogen and those that receive 368 ppm of nitrogen. Assume the populations to be normally dis- tributed with equal variances.

Answers

(5)
Status NEW Posted 17 Jan 2018 09:01 PM My Price 8.00

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