The design specification indicates the mean measurement for the process should b
ID: 3295332 • Letter: T
Question
The design specification indicates the mean measurement for the process should be 12. The sample standard deviation for these data was .21. With that much data, you can assume the population standard deviation is .21.
QIP has suggested that you take periodic random samples of size 30 be taken so you can monitor the process on an ongoing basis. By analyzing the new samples, you can quickly learn whether the process is operating satisfactorily or if it is operating differently than the expected mean. When the process is not operating satisfactorily, corrective action can be taken to attempt to eliminate the root cause(s) (assuming you know what they are). You will take corrective action whenever you reject the null hypothesis at the 0.01 significance level. Use this information to answer the questions in this Data Lab.
Using only the information given in the Background infromation for this DataLab, which of the following is the correct set of null and alternative hypothesis?
Ho:=12Ho:=12 and Ha:12Ha:12
Ho:=12Ho:=12 and Ha:12Ha:12
Ho:=12Ho:=12 and Ha:12Ha:12
Ho:12Ho:12 and Ha:=12Ha:=12
Ho:12Ho:12 and Ha:12Ha:12
None of the above
Explanation / Answer
Ho:=12 and Ha:12
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