Confidence interval of the population mean income
A sample 25 MBA student taking OTM course in spring of 2013, describes an average income of $85,000 with the sample standard deviation of 5,000. Determine the 95% confidence interval of the population mean income of MBA student.
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A sample 16 MBA student taking OTM course in spring of 2013, describes an average income of $62,000 with the sample standard deviation of 2,000. Find the 95% confidence interval of the population mean income of MBA student.
The standard deviation of the population is known to be 4 months. Find the 90% confidence interval of the popualtion mean life of "AA" Alkaline batteries.
A sample 9 MBA student taking OTM course in spring of 2013, describes an average income of $95,000 with the sample standard deviation of 9,000. Find the 90% confidence interval of the population mean income of MBA student.
A sample of 36 "AA" Alkaline batteries has mean life of 6 months. The standard deviation of the population is known to be 3 months. Find the 95% confidence interval of the popualtion mean life of "AA" Alkaline batteries.
Why is it significant to record transactions in a journal in the chronological order? What can happen if you don't put them in chronological order? How can you fix problems that can occur from not having them in chronological order?
Find an ODE y'= f(x,y) for which the domain is the whole xy-plane and such that ny straight line passing through point (1,1) belongs to its isocline. Solve the equations.
You've five boxes with five hats in each and each that has five feathers with five colored dots. Now the hats are in a rainbow of color and so are the feathers but the dots are all various random combinations of red, yellow, and blue-green.
Illustrate (give a formula for) a function f: A (arrow from A pointing to B) B so that f is injection but not surjection. PS. You don't need to prove that the function has the required properties, although you may want to convince yourself that it
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