5.78 An automatic welding machine is being consid- ered for use in a production process. It will be con- sidered for purchase if it is successful on 99% of its welds. Otherwise, it will not be considered efficient. A test is to be conducted with a prototype that is to perform 100 welds. The machine will be accepted for manufacture if it misses no more than 3 welds. (a) What is the probability that a good machine will be rejected? (b) What is the probability that an inefficient machine with 95% welding success will be accepted?

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