A ball bearing company claims its bearings on average have a diameter of 1.23 inches. A consumer advocacy group claims the bearings have an average diameter less than 1.23 inches.|||null: the average is 1.23 inches
alternative: the average is less then 1.23 inches
i think... i'm pretty sure. I'm in a statistics class this semester and this is basically all we've been doing do if i'm wrong im in trouble for the final.
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