Maurice Tutor

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About Maurice Tutor

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Elementary,Middle School,High School,College,University,PHD

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: 408 Weeks Ago, 4 Days Ago
Questions Answered: 66690
Tutorials Posted: 66688

Education

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

Experience

  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 09 Jan 2018 My Price 8.00

T procedure

The percent of soil passing through a sieve is one of several soil properties studied by organizations such as the National Highway Institute. A particular experiement considered the percent of soil passing through a 3/8-inch sieve for soil taken from two separate locations. It is known that the percent of soil passing through the sieve is affected by weather conditions. One measurement on soil taken from each location was made on each of 32 different days. The data are available in SoilDataNhi.txt. Is there evidence that the average percent of soil passing through the sieve is different for the two locations? Use R commands to complete the following parts.

(a) Enter the data in R and use the paired T procedure to conduct the test at level α = 0.05, and construct a 95% CI for the difference of the population means.

(b) Use the signed-rank procedure to repeat part (a). Are the p-values and CIs from the two procedures similar?

(c) Conduct the test and CI using the t.test and wilcox.test commands without the paired=T specification. How do the new p-values and CIs compare to those obtained in parts (a) and (b)?

 

Answers

Maurice Tutor
(5)
Status NEW Posted 09 Jan 2018 04:01 PM My Price 8.00

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