paper on statistics

I'm doing a lab report aka paper on the "statistical analysis of the Precision of Electrochemical and Optical ph Sensors"

I was wondering if there where some example papers out there that I might learn from and use as a tool/guide in writing my own. I have written the paper already but with unsatisfactory results. I was in too much of a hurry when writing it and left a few grammar errors. Also I'm not 100% sure what the grad student was looking for initially. The professor wrote the assignment based on a criteria. I feel the Grad student graded everything based on his own idea on how the paper was to be written. That aside I need to see how a professional paper looks like or at least one with professional quality.