The null hypothesis for this lab is that the hair measurement between the caliper measurement and double slit measurement does not match. The alternative hypothesis is that the hair measurement between the two data collections do match. We think that the ‘better’ method of measurement would be measuring with the caliper the accuracy gets down to the 0.01mm. A set of measurement would be defined as ‘better’ than the other if it is more accurate and has a value with more significant figures. Factors that contribute to the uncertainty of the hair’s position would be the tilt of the projector’s screen, the way the hair is taped against the light projection. For the tilt of the projector screen, we think that the uncertainty would be 0.05 mm. For the way the hair is taped against the light projection, we think the uncertainty would be 0.02 mm. We believe the hair being taped to the projection would be more accurate than the tilt of the screen because the screen seemed more unstable, we couldn’t keep it in exactly the same position.
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