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Shoppeagolf.com receives an average of 6.5 returns per day from online shoppers. For a sample of 12 days, they received the following number of returns:

Shoppeagolf.com receives an average of 6.5 returns per day from online shoppers. For a sample of 12 days, they received the following number of returns: 0, 4, 3, 4, 9, 4, 5, 9, 1, 6, 7, 10. At the 1% significance level, can we conclude the mean number of returns is less than 6.5?

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