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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. (a) What is the point estimate of the difference between the two population proportions? (Use 51 52.) :l (b) Develop a 90% confidence interval for the difference between the two population proportions. {Use 51 .52. Round your answer to four decimal places.) :lt:l (c) Develop a 95% confidence interval for the difference between the two population proportions. {Use 51 .52. Round your answer to four decimal places.) :lt:l