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The cost of a daily newspaper varies from city to city. However, the variation among prices remains steady with a standard deviation of 6. A
The cost of a daily newspaper varies from city to city. However, the variation among prices remains steady with a standard deviation of 6. A study was done to test the claim that the average cost of a daily newspaper is 35. Ten costs yield an average cost of 29 with a standard deviation of 4. Do the data support the claim at the 1% level?
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