0% Plagiarism Guaranteed & Custom Written

1. The strength of five types A, B, C, D and E of fibre-board were being compared.

16 / 01 / 2019 Statistics

This paper circulates around the core theme of 1. The strength of five types A, B, C, D and E of fibre-board were being compared. together with its essential aspects. It has been reviewed and purchased by the majority of students thus, this paper is rated 4.8 out of 5 points by the students. In addition to this, the price of this paper commences from £ 48. To get this paper written from the scratch, order this assignment now. 100% confidential, 100% plagiarism-free.

1.    The strength of five types A, B, C, D and E of fibre-board were being compared. Four boards of each type were tested. The modulus of rupture of each of the 20 boards is given in the following table:

A    B    C    D    E
619    424    392    462    465
674    525    494    559    568
633    549    441    556    613
622    601    457    611    611

a)    Use Bartletts test to determine if the within board variances are significantly different (α = 0.05).
b)    Perform analysis of variance and draw your conclusions (α = 0.05).
c)    Use Bonferronis Multiple Comparison Test, with a 0.05 level of significance, to compare the means. Discuss your results.
d)    Calculate 95% confidence limits for the difference of means D and E

2.    The following are the yields in kilograms of above-ground biomass per plot that resulted when four levels of nitrogen were applied to young Douglas-fir seedlings.

Treatment    N0    N1    N2    N3
    4.37    7.50    7.80    9.40
    6.72    8.80    7.82    9.28
    8.32    8.73    9.62    
    8.03        9.00    
a)    Construct the analysis of variance table (α = 0.05).
b)    Calculate 95% confidence limits for the mean of treatment N2.

3.    An experiment was set up to test the production of women against the production of men in forest inventory cruising. The data below show the number of plots they put in per day in three different forest types (A, B, C) for four randomly selected working days.

100% Plagiarism Free & Custom Written

International House, 12 Constance Street, London, United Kingdom,
E16 2DQ

Company # 11483120


We've produced some samples of what you can expect from our Academic Writing Service - these are created by our writers to show you the kind of high-quality work you'll receive. Take a look for yourself!

View Our Samples

Benefits You Get

  • Free Turnitin Report
  • Unlimited Revisions
  • Installment Plan
  • 24/7 Customer Support
  • Plagiarism Free Guarantee
  • 100% Confidentiality
  • 100% Satisfaction Guarantee
  • 100% Money-Back Guarantee
  • On-Time Delivery Guarantee
FLAT 25% OFF ON EVERY ORDER. Use "FLAT25" as your promo code during checkout