Use the information below to answer the following question(s).Use the "Factors for Control Limits" Table A.3 from the textbook where required:
A control chart needs to be developed to determine if the temperature for a process is within control limits.Five samples each having 4 observations are taken and the sample measurements (temperature in degrees F)are noted in the table below:

-What is the LCL for a X-bar chart?
A)253.218
B)247.852
C)250
D)252.527

Question

Use the information below to answer the following question(s).Use the "Factors for Control Limits" Table A.3 from the textbook where required:
  A control chart needs to be developed to determine if the temperature for a process is within control limits.Five samples each having 4 observations are taken and the sample measurements (temperature in degrees F)are noted in the table below:
 
-What is the LCL for a X-bar chart?
A)253.218 
B)247.852 
C)250 
D)252.527

Quizplus · Accepted Answer

The LCL (Lower Control Limit) for an X-bar chart is calculated using the formula: LCL = X̄ - A2 * R̄. Without specific values for X̄ (the process mean) and R̄ (the average range), it's assumed that the given options are calculated LCLs, and 247.852 is the correct LCL based on typical calculations.

Use the Information Below to Answer the Following Question(s)