Question: Use the date in table above and answer the following questions in the space provided below: 1. Does the OTR time appear to be stable?

Use the date in table above and answer the following questions in the space provided below:

1. Does the OTR time appear to be stable? Why or why not?

2. If you were to use a control chart to evaluate stability, which chart would you use? Why?

3. What can you learn about the distribution of the installation process?

4. Does it appear that the country has an impact on installation time? Why or why not?

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1 Analyzing the chart above the OTR time in the chart appears to me as being unstable The cycle times have a variety of time intervals as a whole and for each Country Code For example Country code 1 has a range of cycle times between time frames of 15 to 89 In general the table reflected OTR between cycle times of 5 through 150 Thus reflecting special causes within the entire table and appearing unstable 2 From a first glance of the table above I believe the best control chart to depict the table would be a time plot run chart I believe that the time plot would properly reflect the data of the table accurately instead of taking a glimpse of the table above and jumping into conclusion of what the table reflects the time plot enables us to rationally and statistically analyze the cycle time ... View full answer

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