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A pre-election study wanted to check if Trump was going to win a particular state. They calculated a 95% confidence interval for the difference between

A pre-election study wanted to check if Trump was going to win a particular state. They calculated a 95% confidence interval for the difference between the proportion of people in that state that would vote for Trump and those that would vote for Biden. They used pTrump - pBiden and got (-0.19, -0.1). What would this mean?

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