Why is randomness so valued as a control technique

Reference no: EM13511932

a) Why is randomness so valued as a control technique?

b) Explain the difference between random selection and random assignment. Which is used most often in experimental research? Which is more important ,in general, in research and why?

Reference no: EM13511932

Questions Cloud

What is an operational hypothesis : What is an operational Hypothesis, and how would I wright one about the study below? The State of Wisconsin began running a Boot Camp for first time youth drug offenders. The camp entails sending the ofenders to the north woods from 3/14/2011 - 3/..

What is the willingness condition for cost minimization : MPL=100 MPK=500 PL=50 PK=10. Is the firm minimizing costs? If not, how should the firm adjust its input set? What is the willingness condition for cost minimization? What two conditions must be met if a firm is maximizing profits? Explain how t..

How far upstream is the boat : A rowboat crosses a river with a velocity of 3.67 mi/h at an angle 62.5° north of west relative to the water. How far upstream is the boat when it reaches the opposite shore

Explain the concentrations of barium and sulfate ions : A solution is prepared by mixing 75.0 mL of 0.020 M BaCl2 and 125 mL of 0.040 M K2SO4. What are the concentrations of barium and sulfate ions in this solution. Assume only SO4^-2 ions (no HSO4-) are present

Why is randomness so valued as a control technique : Why is randomness so valued as a control technique? Explain the difference between random selection and random assignment. Which is used most often in experimental research? Which is more important ,in general, in research and why?

What is sterlings correct cash balance at march 31 : In addition, Sterling discovered that it had erroneously recorded a check for $46 that should have been recorded for $64. What is Sterling's correct Cash balance at March 31?

State the equation and calculate k for the reaction : The conversion of methane to ethane is done by reacting the methane with oxygen and it produces water as well as ethane. write the equation and calculate K for the reaction at 25c and 500c. Explain how the reaction is an example of driving a non-s..

Calculate what the balances will be in the unearned magazine : Calculate what the balances will be in the Unearned Magazine Revenue and Magazine Revenue accounts?

Explain desalination of water : Predict whether the following will result in an increase or decrease in entropy and justify your reasoning. Desalination of water

User Account

All Pages