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In a random sample of 79 balloons, the average volume of helium required to ll each balloon is 41.18 cm3 with a standard deviation of

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In a random sample of 79 balloons, the average volume of helium required to ll each balloon is 41.18 cm3 with a standard deviation of 6.51 ems. Create a 80% condence interval for the population mean volume to ll a balloon. Round your answers to at least two decimal places. |:|

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