Question: #112 If you computed correlation coefficient r = +1.2 on your scatter diagram, which of the following is true? A You have a better than

#112
If you computed correlation coefficient r = +1.2 on your scatter diagram, which of the following is true?
A You have a better than perfect positive correlation
B You have no residual error
C You have an error in your calculations
D

Your value of 1.2 exceeds the critical value or 1.0, and there is a strong correlation

#111

Which of the following does NOT represent a criteria for control charting?
A Record the data in time sequence
B Recalculate the control limits when the process has significantly changed
C If there is an abundance of data, it is generally better to use an X-bar-R chart rather than an ImR (a.k.a. XmR) chart
D

Use the average range for calculating the control limits of the X-bar portion of the X-bar-R are chart

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