question archive Let X be normal random variable and Y be a Chi-square random variable with df degrees of freedom then the ratio ?x/sqrt(y/df)? follows (note that this is the reason we use a common test when we don't know for certain the true value of the variance): a) A ?X2? distribution
Let X be normal random variable and Y be a Chi-square random variable with df degrees of freedom then the ratio ?x/sqrt(y/df)? follows (note that this is the reason we use a common test when we don't know for certain the true value of the variance): a) A ?X2? distribution
Subject:StatisticsPrice: Bought3
Let X be normal random variable and Y be a Chi-square random variable with df degrees of freedom then the ratio ?x/sqrt(y/df)? follows (note that this is the reason we use a common test when we don't know for certain the true value of the variance):
a) A ?X2? distribution.
b) A normal distribution.
c) An F distribution.
d) A t distribution.
