A study claims that over 40% of those who suffer from osteoarthritis receive measurable relief from an ingredient produced by a particular species of mussel. To test this claim, the mussel extract is...

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Extracted text: A study claims that over 40% of those who suffer from osteoarthritis receive measurable relief from an ingredient produced by a particular species of mussel. To test this claim, the mussel extract is to be given to a group of 8 osteoarthritic patients. If 4 or more of the patients receive relief, we shall not reject the null hypothesis that p = 0.4; otherwise, we conclude that p<0.4. (a)="" evaluate="" a,="" assuming="" that="" p="D0.4." (b)="" evaluate="" b="" for="" the="" alternative="" p="0.3." (a)="" a="(Round" to="" four="" decimal="" places="" as="">