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Sch 550 Research Methodology Question Paper

Sch 550 Research Methodology

Course:Master Of Science

Institution: Kenyatta University question papers

Exam Year:2009

Date:Wednesday 28-april 2010 TIME:12:00pm

INSTRUCTIONS
Answer all questions
Q1 a)i Explain the importance of a research proposal in any research
ii)Briefly explain the main components of a research proposal
Explain how it differs from a project proposal. (15MKS)
b)Briefly discuss the difference between qualitative and quantitative types of research.
c)Discuss various ways of citing reference within a test.(4MKS)
Q2 a) i)Using an example describe the steps followed in designing an experimental process.
ii)Explain what you understand by randomization in the experiment design process and how it can be structured to allow for analysis of more than one uncontrolled factors. ( 10 MKS)
b)Describe one test used to determine whether a set of data is normally distributed (5mks)
c)Describe the processing of detecting change in the process operator in an industrial process using the cu sum chart.
Q3 i)A new flame atomic absorption spectroscopic(FAAS)method for determining antimony in the atmosphere was compared with the recommended colorimetric method.For samples from an urban atmosphere the following results were obtained.

sample Conc of antimony

FAAS standard method
1 22.2 25.5

2 19.2 19.5
3 15.7 16.6
4 20.4 21.3
5 19.6 20.7
6 15.7 16.7

i)Do the results obtained by the two methods differ significantly?
ii)Calculate the equation of the regression line of the data?
iii)Using the regression line,comment on the suitability of using the the new method to determine antimony. (10 MKS)
b)Four standard solution containing 16.00% by weight of chloride were analyzed by three method of titration.The order of experiment was randomized and the results obtained were

solution A B C
1 16.03 16.13 16.09
2 16.03 16.13 16.15
3 16.02 15.94 16.12
4 16.12 15.97 16.10

i)Construct a two way ANOVA formula table explaining all the variables.
ii)Test whether there is a significant difference in the concentration of chloride in the different (10MKS)
solution.

c)Explain what causes some instrument result to be below detection limit and how these results are treated. (5 MKS).
5

Sch 550 Research Methodology Question Paper

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