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You measure 43 backpacks' weights, and find they have a mean weight of 67 ounces. Assume...

You measure 43 backpacks' weights, and find they have a mean weight of 67 ounces. Assume the population standard deviation is 6.1 ounces. Based on this, construct a 99% confidence interval for the true population mean backpack weight.

Give your answers as decimals, to two places

±±  ounces

Math   Statistics-And-Probability   
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