An article wanted to look at the compression strength of aluminum cans filled with strawberry drink and another sample filled with cola. (a) Does the following data suggest that the extra carbonation of cola results in a higher average compression strength? Base your answer on a P-value. What assumptions are necessary for your analysis? (b) Develop a 90% confidence interval of the difference of compression strength between the two beverages. Beverage Sample size SampleMean SD Strawberry drink 15 540 21 Cola 15 554 15

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