Consider two independent random samples with the following results: n1=570pˆ1=0.47n1=570p^1=0.47   n2=618pˆ2=0.81n2=618p^2=0.81 Use this data to find the 98%98% confidence interval for the true difference between the population proportions. Copy Data Step 1 of 3 :   Find the point estimate that should be used in constructing the confidence interval.     Step 2: Find the margin of error. Round your answer to six decimal places.      Step 3: Construct the 98 % confidence interval. Round your answers to three decimal places. Left endpoint: ________ Right endpoint: ________

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