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An automatic welding machine is being considered for production. It will be considered for purchase if it is successful for 99% of its welds. Otherwise, it will not be considered efficient. A test is conducted on 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?
Use rejection points and previously given sample information to test the hypothesis you set up in part a by setting alpha equal to 010, .05, .01, and .001.
In a normal distribution
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