2. An automatic welding machine is being considered for use in
a production process. It will...
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2. An automatic welding machine is being considered for use ina production process. It will be considered for purchase if it issuccessful on 99% of its welds. Otherwise, it will not beconsidered efficient. A test is to be conducted with a prototypethat is to perform 100 welds. The machine will be accepted formanufacture if it misses no more than 3 welds. (a) What is theprobability that a good machine will be rejected? (b) What is theprobability that a machine with 97.5% welding success will beaccepted? (c) What is the probability that an inefficient machinewith 95% welding success will be accepted?
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SolutionLet X be the number of miss by the machine in performing 100welds The probability of
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