# I am stuck here at how to find likelihood ratio test of 3 variable of exponential distribution

How can I find the critical region/value for the likelihood ratio test of 3 exponentially distributed variables $$u_1,\,u_2,\,u_3$$?

$$H_0:\,u_1=u_2=u_3 \\ H_1:\,u_1\neq u_2$$

I'm not sure where to go ater this point.

• I tried to edit this question so it has clearer wording and intent. Feel free to revert or to edit it yourself. – Nuclear03020704 May 13 '20 at 17:12