Analyse data using anova, Macroeconomics

Assignment Help:

A scientist postulates that grazing by gastropod snails affects the settlement of Spirorbid worms in estuaries. She sets up a manipulative experiment to test this by using cages to exclude grazers, and she repeated the whole experiment three different times. The full experimental design had the following factors:

Factor 1: Treatment, 3 levels (open surfaces, caged surfaces and a procedural control consisting of a partial cage), fixed;

Factor 2: Time, 3 levels, random, crossed with factor 1;

Factor 3: Sticks, 3 levels, random, nested in Treatment and also nested in Time

She counted the number of Spirorbid worms settling after a period of 6 months on each of n = 4 replicate panels per combination of the above factors. Data are given in the file "Spirorbids.txt".

a. Analyse these data, using ANOVA, using the full model associated with the above experimental design. Summarize your conclusions from this study as you would for a scientific journal.

b. What is a "mixed model"?

c. Which term in the above model yields a test of generality of effects of treatments among the three different trial runs?

d. Which term in the model yields a test of consistency in the overall direction of the effects of treatments across the three different trial runs, even in the presence of a potentially significant interaction with Time?

 


Related Discussions:- Analyse data using anova

Economic assesment, can you tell me how this works, i am struggling to writ...

can you tell me how this works, i am struggling to write my report in economics and i would like to know how much does it cost some help

Competitive bidding process, After a competitive bidding process, Firm G wi...

After a competitive bidding process, Firm G wins a contract to collect and dispose of Firm H's hazardous waste for $1,000 per year. Firm G's labor costs are $200 per year, and beca

Codinal theory - consumer choice concernin utility, Ordinal Theory: A...

Ordinal Theory: A Short Note In ordinal approach, utility is measured ordinally i.e., qualitatively (not numerically or quantitatively). Alternatively, consumer can rank her

Monetarism - friedman''s demand for money function, Monetarism This sc...

Monetarism This school argues that disturbances within the monetary sector are the principal causes of instability in the economy. According to monetarists, the money supply i

What do you mean by exchange rate, Q. What do you mean by Exchange rate? ...

Q. What do you mean by Exchange rate? Exchange rate is defined as the price of one unit of currency in terms of another currency. If one euro costs 1.5 USD then 1 USD costs 1/1

What is bowed-out shape, Why does a production possibilities frontier with ...

Why does a production possibilities frontier with increasing opportunity costs have a bowed-out shape?   The curve is bowed-out because some resources are better suited for the

Growth, What is Bolivia''s growth in 1985?

What is Bolivia''s growth in 1985?

Determination of all endogenous variables, Determination of all endogenous ...

Determination of all endogenous variables  We can explain how all the endogenous variables are determined in below figure:  Figure: The Keynesian model with the Phillips c

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd