The Optical Aperture Size of a Pinhole Camera

Paper 1
This paper was written by Frostberg State University students in the state of Maryland, after they did some experiments with a pinhole camera:
https://www.frostburg.edu/student-life/rmsc/_files/pdf/projects/2014pinhole.pdf
When you read this paper, please consider the following questions:

1. What was the overarching scientific question that these students were trying to determine?
2. What techniques did they use in their experimental design?
3. What techniques did they use in the analysis of their data?
   Paper 2
   This paper was written by a scientist who studies light and cameras:
   When you read this paper, please consider the same questions as for the first paper:
4. What was the overarching scientific question that the author was trying to determine?
5. What techniques did he use in his experimental design?
6. What techniques did he use in the analysis of his data?