Essay
Pamela called nine repair shops for quotes for auto repairs and pick the quote closest to the mean.The prices are $139,$150,$345,$99,$169,$155,$140,$200,and $160.She heard that data collections that are normally distributed will have 95% of its values within 2 standard deviations of the mean and wants to remove any quotes outside of that mark before determining a revised average that will help her make a decision.What is the mean price quote for 95% of the auto repairs that are within 2 standard deviations of the mean?
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Pamela should discount the $345 quote be...View Answer
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