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The average price of a random sample of 12 bottles of diet salad dressing taken from...

The average price of a random sample of 12 bottles of diet salad dressing taken from different stores is $3.43. The standard deviation is $0.18. The average price of a random sample of 16 regular salad dressings is $3.38. The standard deviation is $0.20. At alpha = 0.10, is there a significant difference in price?

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