Mathematics, 13.10.2020 03:01 cuppykittyy
A machining process produces screws for which the population proportion of screws with defective threads is .10(10%). A new laser-enhanced process has become available and the developer claims that the population proportion of screws with defective threads will be less than .10. To test the validity of this claim, 900 screws produced by the new process are selected at random and the sample proportion of defectives is computed. This result will be used to make a decision as to whether or not the manufacturer should invest in the new process.
Required:
a. What should be used as the alternative hypothesis?
b. Determine the p-value of the test statistic if p ^ = 0.076.
Answers: 1
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