Step 1 :Consider two independent random samples with the following results: \(n_{1}=573, n_{2}=604, \hat{p}_{1}=0.63, \hat{p}_{2}=0.49\). We are asked to find the 95% confidence interval for the true difference between the population proportions.
Step 2 :The margin of error for a confidence interval for the difference between two population proportions can be calculated using the formula: \(E = Z \sqrt{ \left(\frac{p1(1-p1)}{n1}\right) + \left(\frac{p2(1-p2)}{n2}\right) }\) where: E is the margin of error, Z is the Z-score (for a 95% confidence interval, the Z-score is approximately 1.96), p1 and p2 are the sample proportions, and n1 and n2 are the sample sizes.
Step 3 :Substitute the given values into the formula to find the margin of error: \(n1=573, n2=604, p1=0.63, p2=0.49, Z=1.96\).
Step 4 :The margin of error for the 95% confidence interval for the difference between the two population proportions is approximately 0.05614460984264031 when rounded to six decimal places.
Step 5 :Final Answer: The margin of error for the 95% confidence interval for the difference between the two population proportions is approximately \(\boxed{0.056145}\).