subject
Chemistry, 22.06.2019 13:00 rome58

Lab reagent, hypothesis test. a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl. these six measurements are assumed to be an srs of all possible measurements from solution. they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution. carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 21.06.2019 17:30
**40** points asapessay questions (10 points possible) clear image of next, create your own scenario. it can be one of your own real experiences or one you make up. use imagery in your writing to give your instructor a the setting and an action taking pace in your writing explain the structure and functions of the skin at work in your scenario. !
Answers: 3
question
Chemistry, 22.06.2019 02:50
Achemical plant produces an ammonia-rich waste gas that cannot be released as-is into the environment. one method to reduce the ammonia concentration in the waste gas is to bubble the waste gas through a liquid solvent. components of the gas that are highly soluble, like ammonia, will dissolve into the liquid phase. water is an appropriate liquid solvent for this process. the chemical plant produces 120.0 m3/hr of waste gas (ρ = 0.0407 mol/l) initially having a mole fraction of 0.110 nh3, and wishes to remove 90.0% of the initial amount of nh3. the maximum concentration of ammonia in water at this temperature is 0.4500 mol nh3/ mol water. neglect the absorption of other waste gas components into the water, and the evaporation of water into the waste gas stream. what rate is nh3 is being removed from the feed gas?
Answers: 2
question
Chemistry, 22.06.2019 09:30
What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.
Answers: 2
question
Chemistry, 22.06.2019 21:50
What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car​
Answers: 2
You know the right answer?
Lab reagent, hypothesis test. a reference solution used as a lab reagent is purported to have a conc...
Questions
Questions on the website: 11124311