Percent level of significance


The mean price to buy two of the medicines was $267.00 in 2006. A random sample of discount prices gives the following prices: 221, 286, 290, 330, 310, 250, 270, 280, 299, 265, 291, 275, and 281. At one percent level of significance, can you conclude that the mean fare has increased?

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Basic Statistics: Percent level of significance
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