005 have cable television as compared to 19857 Q 24. Selling autographed sports memorabilia has become...

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005 have cable television as compared to 19857 Q 24. Selling autographed sports memorabilia has become a multimillion dollar industry in the United States. But just how does the purchaser of an autographed football jersey or an autographed baseball know that the autograph is indeed authentic? Unfortunately, the sports memorabilia market is teeming with con artists who prey upon the trusting nature of sports fans. In 1996, the FBI said that 70% of all autographed sports memorabilia is fraudulent. Assume that 50 pieces of autographed sports memorabilia are sampled at a large memorabilia show and that 40 of them are determined to be fraudulent. a. With a = 0.05, can it be concluded that the proportion of fraudulent autographed sports memorabilia at the show differs from the FBI claim? b. What is the greatest number of fraudulent items in the sample of 50 that would not allow a conclusion that sports memorabilia at the show differs from the FBI claim? 10.6 Testing a Hypothesis about a ly 005 have cable television as compared to 19857 Q 24. Selling autographed sports memorabilia has become a multimillion dollar industry in the United States. But just how does the purchaser of an autographed football jersey or an autographed baseball know that the autograph is indeed authentic? Unfortunately, the sports memorabilia market is teeming with con artists who prey upon the trusting nature of sports fans. In 1996, the FBI said that 70% of all autographed sports memorabilia is fraudulent. Assume that 50 pieces of autographed sports memorabilia are sampled at a large memorabilia show and that 40 of them are determined to be fraudulent. a. With a = 0.05, can it be concluded that the proportion of fraudulent autographed sports memorabilia at the show differs from the FBI claim? b. What is the greatest number of fraudulent items in the sample of 50 that would not allow a conclusion that sports memorabilia at the show differs from the FBI claim? 10.6 Testing a Hypothesis about a ly