You may need to use the appropriate appendix table or technology to answer this question. Consider the following results for independent samples taken from two populations. Sample 1 Sample 2 -400 n-300 P-0.53 P-0.36 (a) What is the point estimate of the difference between the two population proportions? (Use p-P-) (b) Develop a 90% confidence interval for the difference between the two population proportions. (Use P, P. Round your answer to four decimal places.) to (c) Develop a 95% confidence interval for the difference between the two population proportions. (Use P.-P. Round your answer to four decimal places.) to