00:01
So you have a sample size in your problem that's very large, 61 ,647.
00:05
And you found that the proportion of people who said the boss screamed, i think, was only 26 out of that value.
00:15
And we want to find, with 5 % significance level, we want to do a test per proportion.
00:23
So one proportion c test.
00:25
And we would be assuming that the proportion is equal to one -fourth, or is a number.
00:32
Possibly less than or equal to that.
00:34
And alternately, this is what their claim was that they really think it's higher than one -fourth.
00:41
And so we're going to assume that one -fourth is our answer, or 0 .25 is the population proportion.
00:49
And since we're doing a one -tale test, we're going to be coloring the end that is to the right.
00:55
And notice what this 26 divided by the 61 ,647 is.
01:01
This is extremely small proportion.
01:04
This is only 0 .004217 etc.
01:12
Now in 5 -6.
01:14
So it's a very, very small proportion.
01:17
So you're way up here...