00:01
So, for this problem to begin, we know that our claim, effectively, is that the coin is not fair.
00:06
We're not saying that it's biased, or actually, pardon me, we're asked specifically to test the hypothesis that the coin is biased towards heads.
00:13
So in that case, we'll do it this way.
00:16
The null hypothesis that we're testing is that, well, the coin is fair under the null.
00:21
The alternative hypothesis is that the probability of getting heads is greater than 0 .5.
00:26
So we're doing this as a right -tailed test for proportion.
00:31
We're testing at the alpha equals 0 .05 level of significance.
00:36
So the first thing that i'll do is declare my rejection region, or my decision criteria...