A pharmaceutical company wants to test whether Aspirin 1 is as effective as Aspirin 2. A random sample of 400 people with headaches are given Aspirin 1 and 260 report they feel better within 1 hour. Another independent random sample of 350 people with headaches are given Aspirin 2 and 220 report they feel better within 1 hour.

a) At the 1% level of significance, does there appear to be a difference in the effectiveness of the 2 types of Aspirin?

b) What is the p-value?

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