 Hello, this is a video on building two sample confidence intervals for two proportions. Create a 95% confidence interval for P1 minus P2 given the following sample data. You have 165 successes in a sample size of 260 from the first population and you obtain 108 successes in a sample size of 270 from the second population. All you have to do is for each group, you need to jot down the number of successes and then the sample size. So group one, the number of successes would be 165. The sample size of group one is 260. X2 or the number of successes in the second group would be 108. The sample size is 270. The only other thing you need would be your confidence level. In this case, it's 95% or .95. This is what you type in the Google Sheets. Google Sheets, you'll go to the Data List tab. The two prop CLP value region. Group one, type in the successes and the sample size. So, 165 out of 260. Do the same for group two, 108 out of 270. Alright, then the confidence level in this case is going to be .95. And you see your lower bound around the two decimal places of about .15 and upper bound would be .32. So our confidence interval, the difference of the two proportions is going to be between 0.15 and 0.32. This is the confidence interval we are trying to build. To interpret it, we say that with confidence level 95%, the difference between the population proportions of the two groups is between 0.15 and 0.32. Well, that's all I have for you. Thank you for watching.