Every simulation in this module is based on an assumption about the difference between two population proportions. The population proportions affect the mean and the standard error of the differences in sample proportions. The sample size also affects the standard error. The distribution of differences between sample proportions shown below has mean 0.35, and a standard error of about 0.10. Which of the following did we use to generate this sampling distribution? Population proportions of 0.85 and 0.65 with samples of size 35. Population proportions of 0.85 and 0.50 with samples of size 35. Population proportions of 0.85 and 0.50 with samples of size 20. Population proportions of 0.85 and 0.65 with sample sizes of 20.