Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 18 Jan 2018 My Price 6.00

Cellulose content in alfalfa hay

6.122   Cellulose content in alfalfa hay. An agronomist examines the cellulose content of a variety of alfalfa hay. Suppose that the cellulose content

in the population has standard deviation σ = 8 milligrams per gram (mg/g). A sample of 15 cuttings has mean cellulose content x = 145 mg/g.

(a)   Give a 90% confidence interval for the mean cellulose content in the population.

(b)   A previous study claimed that the mean cellulose content was μ = 140 mg/g, but the agronomist believes that the mean is higher than that figure. State H0 and Ha and carry out a significance test to see if the new data support this belief.

(c)   The statistical procedures used in (a) and (b) are valid when several assumptions are met. What are these assumptions?

Answers

Maurice Tutor
(5)
Status NEW Posted 18 Jan 2018 09:01 PM My Price 6.00

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