00:01
So on your question, you have a sample size of 30, and they were investigating having a lawn service.
00:10
And they found that of these 30 people, 11 did not, and 19 did.
00:18
And then, so you have a p hat for those that did, being 19 out of 30.
00:27
And then you said that there are other statistics that were given in a table.
00:32
However you didn't list anything in the table and you also didn't list a question.
00:37
So i'm going to assume that maybe one of the questions you wanted to define was, do you have evidence? is there evidence that the majority of people have a lawn service? and the majority would mean that we would need the proportion to be higher than 50%.
00:53
So does the majority have a lawn service in this region? and you could be testing people's income levels, which i would think would be a factor, but we would be assuming that this proportion is less than or equal to 50%, and alternatively, 0 .5.
01:24
And then this would be a one proportion z test.
01:27
And again, i'm just guessing that this might be something you might be asked to do.
01:30
I would assume you're probably also doing some type of a comparison, looking at the income level of people and comparing those that do in that.
01:39
Those that don't give it on different income levels with that sample size is not very big.
01:43
So let's at least do this one.
01:45
And so we have the z value for this proportion...