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A new sneaker claims that it can make athletes jump higher. A sample of 25...

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Basic Math

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A new sneaker claims that it can make athletes jump higher. A sample of 25 athletes is asked to jump once with their own sneakers on and once wearing the new sneakers. The average jump increased by 1.5 inches with the new sneakers! Assume that the standard deviation of the sampling distribution is .6 inches. Find a 95% confidence interval for the mean increase and then interpret what this means.

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