00:02
We want to test to see if the sample mean is statistically different than the population mean.
00:09
So our null hypothesis is going to be mu, population mean equals 1 ,600.
00:18
And then our alternative hypothesis is going to be population mean does not equal 1 ,600.
00:24
Now we need to carry out a test.
00:26
We need to calculate a test statistic t by doing our sample mean minus the population mean, and divide that by our standard deviation for our sample over the square root of our sample size.
00:38
So x bar sample mean is 1630, mu is 1 ,600.
00:44
The sample standard deviation, s, is 200.
00:50
And n, our sample size, is 100...