Refer to Exercise 6.59. The company officials decided to use the separate-variance t test in deciding whether

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Refer to Exercise 6.59.
Refer to Exercise 6.59. 
The company officials decided to use

The company officials decided to use the separate-variance t test in deciding whether the mean potency of the drug after 1 year of storage was different from the mean potency of the drug from current production. Provide evidence that their decision in fact was correct.

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