Question: The time needed for checking in at a motel is to be investigated. Historically, the process has had a standard deviation equal to 0 .

The time needed for checking in at a motel is to be investigated. Historically, the process has had a standard deviation equal to 0.143.
The meons of 39 somples of n=26 are
Click here for the Excel Dots File
a-1. Construct an x-chart for this process with three-sigmo limits.
Note: Do not round intermedlate calculations. Round your answers to 2 decimal places.
a-2 ls the process in control?
YeE
No
b. Anclyze the date using a medien run test and an up or down run test. What can you conclucle?
The time needed for checking in at a motel is to

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