Define any indication of systematic error in either analysis

Reference no: EM13650693

To test the quality of the work of a commercial laboratory,duplicate analyses of a purified benzoic acid (68.8% C, 4.935% H)sample were requested. It is assumed that the relative standarddeviation of the method is sr ? s = 4 ppt forcarbon and 6 ppt for hydrogen. The means of the reported resultsare 68.5% C and 4.88% H. At the 95% confidence level, is there any indication of systematic error in either analysis?

Reference no: EM13650693

Questions Cloud

What is the flow speed of the medicine through the needle : A 5.00 mL syringe has an inner diameter of 4.50 mm,a needle inner diameter of 0.220 mm, What is the flow speed of the medicine through the needle

Define a solute interacts strongly with the stationary phase : If a solute interacts strongly with the stationary phase what practical implication might this have

What are the distances traveled by the tips of the hands : The hour, minute, and secondhands on a clock are 0.25 , 0.31 , and 0.37 long,respectively. What are the distances traveled by the tips of the hands in a 45 interval

Explain attractive forces between particles are strong : In each of the following cases, does the ratio PV/nRT for a real gas have a value greater than or less than 1. a) Attractive forces between particles are strong.

Define any indication of systematic error in either analysis : The means of the reported resultsare 68.5% C and 4.88% H. At the 95% confidence level, is there any indication of systematic error in either analysis

Find how many revolutions did the disc make during this time : A spinning disc rotating at130 rev/min slows and stops 31 s later. How many revolutions did the disc make during this time

What is the speed of the rivers current : A boat, whose speed in still water is 1.70 m/s, must cross a 260m wide river and arrive at a point 110m upstream form where it starts. What is the speed of the river's current

Explain how would a decrease in the volume of a gas : How would a decrease in the volume of a gas initially heldat STP affect. The Kinetic energy of the gas if T is constant, the average speed of the gas and the total number of collision with the walls of the vessel

Determine what is the resultant speed of the boat : A motorboat whose speed in still water is 2.60 m/s, must aim upstream at an angle of 28.5 degrees in order to travel directly across the stream. what is the resultant speed of the boat with respect to the shore

User Account

All Pages