00:01
Alright, so here the question is that according to the federal trade commission report on consumer fraud and identity theft, 23 % of all complaints in 2007 were for identity theft.
00:13
So, this year a certain state kept track of the number of its 1270 complaints were for identity theft.
00:19
So, they want to know if the data provide enough evidence to show that this state had a higher proportion of identity theft than 23%.
00:27
So here the question is to state the random variable, population parameter and the hypothesis.
00:33
So here the random variable x, it represents the number of complaints that were for identity theft, right.
00:46
These are the number of complaints for identity theft, right.
00:53
Now here our population parameter is the population proportion, right and we are claiming here that the population proportion is greater than 0 .23, right.
01:06
So, for testing this claim, the null hypothesis will be that the population proportion is less than equal to 0 .23 and alternative hypothesis will be that the population proportion is greater than 0 .23.
01:19
So, this is a right tailed hypothesis test, right...