(All Steps) A long-range missile missed its target an average of 0.88 miles. A new steering device is supposed to increase accuracy, and a random sample
Question: A long-range missile missed its target an average of 0.88 miles. A new steering device is supposed to increase accuracy, and a random sample of 8 missiles were equipped with this new mechanism and tested. These 8 missiles missed by distances with a mean of 0.80 miles and a standard deviation of 0.06 miles. At α=0.01, does the new steering mechanism lower the miss distance?
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