Confidence interval of the true proportion
A current study of 900 internet users in Europe found that 20% of internet users were women. What is the 99% confidence interval of the true proportion, p, of women in Europe who use the internet?
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Prove that sequence Un(z)=nze^{-nz^2} converges to zero for all finite z such that Re{z^2}>0 and represent this region geometrically.
For each of the following, indicate whether it is resistant to outliers or not. Do not bother to explain your answers, except for the last one.
Compare standard deviation for heights of males and standard deviation for heights of females in class. Compare values and describe what can be concluded based on numbers.
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Find whether no homogeneous system AX=b is consistent and if so, state solution in form X = XP + Xh, where Xp is particular solution of AX = b and Xh is solution of AX= 0, where no homogenous system equation:
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