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Two tanks A and B, each of volume V, are filled with water at time t=0. For t > 0, volume v of solution containing mass m of solute flows into tank A per second; mixture flows from tank A to tank B at the same rate and mixture flows away from tank B at the same rate. The differential equations used to model this system are given by:
d(SA)/dt+v/V*SA= m/V&d(SB)/dt+v/V*SB= v/V*SA
Where S stands for sigma (concentration of solute) in tank A or B.
Show that the mass of solute in tank B is given by:
mV/v *{1-e^(-vt/V)} - mt*e^(-vt/V)
a carton of eggs assume a carton contains a dozen eggs contains two eggs that are cracke. in a quality effort two eggs
Problem 1: Using the following data, prepare a run chart, scatter chart, and control chart. A late surgery is defined as any surgical operation that was started more than 30 minutes after its scheduled time (Table).
What is the probability of finding exactly four watch soap operas?
What is the probability that Sara will die in her 60 th year? Using this probability and the $50,000 death benefit, what is the expected loss to Big Rock Insurance?
A company is filling bags of rock salt to a level of 50 pounds. It believes that all bags are filled correctly, but would like to use a hypothesis test with an alpha of 0.05 to check this belief.
Find the critical value(s). (e) Based on your answers for parts (a) to (d), will you reject or fail to reject the null hypothesis? State your conclusion in the context of the application.
Statistics is science of conducting studies to: Solve a system of equations.
Why do we have so many several measures of central tendency? Are all really essential or do they essentially give same information?
salte corporation is issuing new common stock at a market price of 33. dividends last year were 1.65 and are expected
fuel economy estimates for automobiles built one year predicted a mean of 25.8 mpg and a standard deviation of 7.2 mpg
We have administered an anxiety test to all members of the class. The mean anxiety score is 71 and the standard deviation is 9. (higher score=higher anxiety)
assume that the significance level is a0.01. use the given information to find the p-value and the critical values.
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