No clue where to start with this...if someone can just help me setup these problems or assist in any way that would be great.
1. d=2.507 g/1.22 mL = 2.054918033 g mL^-1
explain how both the rules for significant figures and the random error calculation (p(d) = +-0.34 g mL^-1) indicate that the digits after the hundreths place have no meaning in this measurement.
2. although the beads used for experimental mass and volume determinations are to be chosen randomly, certain care should be taken not to choose beads that would introduce systematic errors. how would the accuracy of the volume determination be affected (answer \\\"high\\\", \\\"low\\\", or \\\"no significant change\\\") by using beads that are...
warped (nonspherical) ___________________
hollow __________________________________
slightly chipped ________________________
slightly chipped with a large air bubble that has become attached to the outside of the bead
_________________________________________
3. assume that the estimates of the standard deviation for the mean mass of a series of three measurements, a serious of six measurements, and a series of nine measurements were identical. why will the confidence intervals for three mean masses differ? which different is greater: that between the CI for three measurements and the CI for six measurements; or that between the CI for six measurements and the CI for nine measurements? Briefly explain.
4. the 95% probability limit, rather than the 99% limit, is often used to determine the confidence interval for a mean. repeat the calculations for the glass beads described in the background information using the 95% probability limit.