as shown in the attachment--------------------------------------

" I test for variance ratio )* * * 1 . .... In' is a random sample from N ( MI , OF ) 2 ) and {/1 . .... I'm; is a random sample from N ( 12 , 0;) where M1, 12, 01 and or are unknown . Show that the likelihood ratio test for testing Ho : 01 = }} against HI . 01 * or is the F test introduced in Chapter 1 1 . \\Hint : You may first attempt Question 20 of Exercise 12 , which is the x 2 test of variance . ]