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Calculate the margin of error of a confidence interval for the difference between two population means...

Calculate the margin of error of a confidence interval for the difference between two population means using the given information. Round your answer to six decimal places.

σ1=13.38, n1=85, σ2=16.76, n2=97, c=0.9

math   Statistics-And-Probability   
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=3.679075                  
                  

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