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Math · Statistics And Probability
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Part (o (448 marks) A manufacturer of sports equipment has developed a new synthetie fishing line the company claims has a mean breaking strength of 8 kg with a standard deviation of 0.5 kg. To test that the claim, a random sample of 50 lines is tested and found to have a mean breaking strength of (7.8 kg) and a standard deviation of (0.7 kg). Is the manufacturer claim justified at 0.01 level of significance?( state any assumptions made
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