A Researcher Is Interested in Estimating the Difference in Two

question 92

Multiple Choice

A researcher is interested in estimating the difference in two population proportions.A sample of 400 from each population results in sample proportions of .61 and .64.A 90% confidence interval for the difference in the population proportions is _______.

• A)-0.10 to 0.04
• B)-0.09 to 0.03
• C)-0.11 to 0.05
• D)-0.07 to 0.01
• E)-0.08 to 0.12

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