An article from Transactions of the American Fisheries Society reports the resultsof a study toinvestigate Hg contamination in large-mouth bass. Fifty-three samples from various lakes exhibited a mean...

loss. Their weight both before and after participation in the program is shown in the following list. Is there evidence to support the claim that this particular program is effective in producing a mean weight reduction at 95% confidence level? Subject Before After 1 195 187 2 213 195 3 247 221 4 201 190 5 165 152 6 280 267 Mean 216.8 202.0 Std. Dev. 40.8 38.7 3. Six individuals participated in a diet-modification program to stimulate weight of a study to investigate Hg contamination in large-mouth bass. Fifty-three samples from various lakes exhibited a mean Hg concentration of 0.525 ppm Hg with a standard deviation of 0.3486. a. Compute a 98% confidence interval on the mean Hg concentration. b. Calculate the number of samples required for a confidence interval of [0.45, 0.6]. uncertainty) of 1 mol of an ideal gas (PV=nRT) at P = 275 kPa and V = 12.5 L. The uncertainties in the pressure and volume measurements are 0.04 kPa and 0.005 L, respectively. 4. An article from Transactions of the American Fisheries Society reports the results 5. Use the propagation of error formula to calculate the temperature (with its Normal distribution. Make sure to explain your conclusion. i Y 1 13.2 2 11.9 3 14.2 4 11.1 5 17.5 Ave 13.6 Half-Normal Probability Plot 0.0000 0.2000 0.4000 0.6000 0.8000 1.0000 1.2000 1.4000 1.6000 1.8000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 6. Construct a half-Normal probability plot to determine if the data below come from a you buy their premium grade, since it is expected to give better yields (of course at an increased price). You agreed to try it and see if it actually is better. You ran a plant trial of 32 batches (16 batches with each grade of raw material). The results are given below. Regular Grade Premium Grade Number of Samples 16 16 Average Yield, % 95.3 96.1 Sample Standard Deviation, % 1.20 1.10 a. Is the yield obtained using the Premium Grade of raw material significantly better than that using the Regular Grade? Use a significance level...