A computed 99% confidence interval for the true difference between two population proportions is -0.025 to +0.109. Then at 99% confidence level, a. Based on this result, we can not make a meaningful state about the difference between the two population proportions. b. We can conclude that there is a significant difference between the two population proportions. c. We can conclude that the first population proportion is more than the second population proportion. d. We can not conclude that there is a significant difference between the two population proportions.
