00:01
For exercise 91a, we have first to reject h -o -if sigma i equals 1 to 20.
00:29
Y sub -i is greater than 156 and 4500s.
00:35
Then for part b, we have the power sub -7 .5 equals 0 .2595.
00:46
The power sub 8 is equal to 0 .6754.
00:54
Power sub 8 .5 is equal to 0 .92 72 the power sub 9 is equal to 0 .993 and for c we have and let's sketch this up we'll label this one uh 7 .4 first for x axis but let's get these lines drawn and then for a y -axis, we have .2 .468.
01:58
And it does go all the way up to one possible.
02:09
And i think it is.
02:11
Okay.
02:13
So now i'll get rid of that ruler and we'll write 0 .2, 0 .6, and 1 .0 .0 .0 .0.
02:29
Then here we have 7 .5, 7 .7, 7 .9, 8 .1, 8 .3, 8 .5, 8 .7...