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, 5 Days Ago
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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 07 Oct 2017 My Price 6.00

use the commands

Use cs = read.table(”Concr.Strength.1s.Data.txt”, header = T) to read into the R object cs data on 28- day compressive-strength measurements of concrete cylinders using water/cement ratio 0.4 (see footnote 5 in Exercise 1 in Section 1.5). Then use the commands attach(cs); sum(Str < =="" 44)/length(str);="" sum(str=""> = 47)/length(Str) to obtain the proportion of measurements that are less than or equal to 44, and greater than or equal to 47. What do these sample proportions estimate?

Exercise 1

Use cs = read.table(”Concr.Strength.1s.Data.txt”, header = T) to read into the R object cs data on 28-day compressive-strength measurements of concrete cylinders using water/cement ratio 0.4.8 Then use the commands attach(cs); hist(Str, freq = FALSE); lines(density(Str)); stem(Str) to produce a histogram with the smooth histogram superimposed, and a stem and leaf plot.

Answers

Maurice Tutor
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Status NEW Posted 07 Oct 2017 11:10 PM My Price 6.00

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