1. A technician determines the concentration of calcium in milk using two instrumental methods. For method A, the mean= 95.03ppm with a standard deviation= 0.35(n = 10 samples) and for method B, the mean= 94.96ppm with a standard deviation= 0.64(n = 8 samples). What is the F calculated value? Report the value to two decimal places, i.e. X.XX

2. The average density for a batch of sodium hydroxide solution manufactured by Caustic Inc. is 1.21 g/mL with a standard deviation of 0.05 g/mL. Assuming a Gaussian distribution, what percentage of batches will have a density greater than or equal to 1.18 g/mL? Report the percentage to the hundredths place with units, i.e. X.XX%.