The phenol concentration of wastewater was determined from three (3) parallel determinations, giving a mean of 0.513 μg L-1 and a standard deviation of 0.05 μg L-1. Decide at a risk level of 5% (or a confidence level of 95%) whether a reference value of 0.520 μg L-1 is statistically different.
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The phenol concentration of wastewater was determined from three (3) parallel determinations, giving a mean of 0.513 μg L-1 and a standard deviation of 0.05 μg L-1. Decide at a risk level of 5% (or a confidence level of 95%) whether a reference value of 0.520 μg L-1 is statistically different.
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- Using conversion factors, solve each of the following clinicalproblems:a. A nurse practitioner prepares an injection of promethazine,an antihistamine used to treat allergic rhinitis. If thestock bottle is labeled 25 mg /mL and the order is a doseof 12.5 mg, how many milliliters will the nurse draw up inthe syringe?b. You are to give ampicillin 25 mg/kg to a child with a massof 62 lb. If stock on hand is 250 mg /capsule, how manycapsules should be given?N. benthamiana will be infiltrated with a solution containing OD600=0.3 of each experimental Agro containing construct and OD600=0.1 of p19. Calculate the volume of cultures (V construct; V p19) needed according to the formulas: V construct = V final × 0.3/OD600; V p19 = V final × 0.1/OD600. One mL of infiltrate is often enough to complete a small experiment. How to plan your final volume accordingly?What statistical analysis should you use to determine LD50 of solutions of treated and un-treated effluent with 100, 50, 26, 13, 6, and 0 percentage dilution over a 1, 24, and 48 hour period? The species used for the lab is Daphnia magna. Can you use a paired t-Tes? Cheers
- Please discuss the value of international normalized ratio (INR) as a test. Why do you think this is more reliable that the ordinary PT.You will be given 1 mL of a 2.0 mg/mL solution of bovine serum albumin (BSA) and 1 mL of a 2.0 mg/mL solution of bovine gamma globulin (BGG). From these solutions, you will need to make 100 μL of each of the following standards using 1x MBP purification buffer as the diluent for preparation of a standard curve: 1000 μg/mL, 750 μg/mL, 500 μg/mL, 250 μg/mL, 125 μg/mL, and 0 μg/mL.Consider the sterilization of a sodium gluconate production medium in the holding section of a continuous sterilizer. Assuming constant temperature, the specific death rate constant of the contaminant is 20 s-1 . If the average residence time in the holding section is 10 seconds, calculate the Del factor for the following and explain the results. i. For Pe = 400 ii. For Pe = 400, assuming plug flow iii. For Pe = 100 iv. For Pe = 100, assuming plug flow