doctors nationally believe that 76% of a certain type of operation are successful. in a certain hospital, 48 of these operations were observed and 57% of them were successful. at the .05 significance level, does this sample data provide sufficient evidence that this hospital's success rate is different from the national average?

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04-11-2022
Mathematics

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doctors nationally believe that 76% of a certain type of operation are successful. in a certain hospital, 48 of these operations were observed and 57% of them were successful. at the .05 significance level, does this sample data provide sufficient evidence that this hospital's success rate is different from the national average?

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