8. Sampling Distributions & Confidence Intervals: Proportion

Use a table to find or estimate ${\chi }^2$ such that:

$P(X^2>{\chi }^2)=0.010$ (Area to the right)

$df=50$

Use a table to find or estimate ${\chi }^2$ such that:

(Area to the left)

$df=50$

Find the left and right ${\chi }^2$-values for a 99% confidence interval with a sample size of 25.

$\alpha =$ ________ $df=$ _______

$\frac{\alpha }{2}=$ _________ ${\chi }_R^2=$ _______

$1-\frac{\alpha }{2}=$ ________ ${\chi }_L^2=$ _______