00:01
To test the claim that the proportion of people who own cats is larger than 60%, then the hypothesis would be that it's equal to 0 .6, and the alternative is that it's greater than 0 .6, which is, well, the alternative then, i would put it as less than or equal to, and so that would be your second to last choice.
00:42
That would make sense.
00:44
This still does make it right -tailed because the alternative hypothesis indicates that we're testing for larger.
00:55
We know that the sample size is 100, that p -hat is 62%, so 0 .62.
01:02
P is 0 .6, and our significance is 0 .05.
01:09
Our z -test statistic for our one -sample proportion z -test is p -hat minus p over the square root of p times 1 minus p over n, so that's going to be 0 .62 minus 0 .6 over the square root of 0 .6 times 1 minus 0 .6 over 100, which is a z -score of 4 .08...