(Solved): 1. The following molar mass of lithium data was collected in 1910. a. Find th ...

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1. The following molar mass of lithium data was collected in 1910. a. Find the mean molar mass based on the data. b. Assuming the currently accepted value is the true value, calculate the absolute error and the percent relative error of the mean value of the data. 2. The alcohol content of a sample of blood was measured three times: $$0.084\%,0.089\%,0.079\%$$ a. Calculate the $$95\%$$ confidence interval for the mean if the three measurements are your only indication of precision b. Calculate the $$95\%$$ confidence interval for the mean if we know the standard deviation of the method $$(\mathrm{s}=0.005\%)$$ and can considerate it a good estimate for $$?$$ (since based on hundreds of prior samples). c. How many replicates are needed to decrease the $$95\%$$ confidence limits to $$\pm 0.001\%$$ if the s determined in a. still describes the distribution.