〈2 xX<te st 0 Get x2 statistic: (n-2)02- X -)(631) Check x table Find the critical x value, x>critical X value, reject Ho Find the P value of the x statistic, p value>level of significance accept Ho◼ 〈2〉χ2 test ·H0 : ·Get χ2 statistic: ~ (6.31) ·Check χ2 table, Find the critical χ2 value, χ2＞criticalχ2 value, reject H0 Find the P value of the χ2 statistic, p value＞level of significance, accept H0 2 0 2 σ =σ 2 2 σ (n - 2)σˆ 2 X(n−2)