Re: Chi Square Areas

*To*: mathgroup at smc.vnet.net*Subject*: [mg110897] Re: Chi Square Areas*From*: Patrick Scheibe <pscheibe at trm.uni-leipzig.de>*Date*: Sat, 10 Jul 2010 06:32:35 -0400 (EDT)

Hi, what about FindRoot[CDF[ChiSquareDistribution[8], x] - 0.95, {x, 1}] ? Cheers Patrick On Sat, 2010-07-10 at 04:01 -0400, Steve wrote: > Hi, > > Can someone show me how to get Mathematica to provide the areas to the > right of a given critical value of the Chi Square distribution ? > > The table entries shown at http://www2.lv.psu.edu/jxm57/irp/chisquar.html > are what I need to compute. > > For example, given 8 degrees of freedom and a probability value of > 0.05 the result would be 15.51. > > And given 5 degrees of freedom with probability 0.1 the result is > 9.24. > > How can I produce these results in Mathematica ? > > Thanks so much. >