The sample standard deviation for the Goodyear Silents' score is 5.55 (the mean is 6) . You would expect the Silents to score within what range 68% of the time?
between 0 and 11.55
between 0 and 17.05
between -5.1 and 17.05
between .45 and 11.55
If more information is needed, please advise what is needed and I will resubmit. thank you
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