Using the Data Below, Determine the Trial Central Line and Trial

question 4

Short Answer

Using the data below, determine the trial central line and trial control limits for the X-bar chart. Subgroup size is 5. For the R chart, the trial central line is 0.11, the UCL is 0.23, and LCL is 0. Note not all of the subgroups are included in the data;however, the sums are correct. $$\begin{array} { | c | c | c | } \hline \text { Subgroup } & \text { X-bar } & \text { R } \\\hline 1 & 2.08 & .05 \\\hline 2 & 2.09 & .24 \\\hline 3 & 2.08 & .10 \\\hline \bullet & \bullet & \bullet \\\hline \bullet & \bullet & \bullet \\\hline \bullet & \bullet & \bullet \\\hline 25 & 2.09 & .11 \\\hline & ^{\mathrm { TM } }= 52.00 & ^{\mathrm { TM } }= 2.75 \\\hline\end{array}$$

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Definitions:

Prostatomegaly

The enlargement of the prostate gland, which may cause urinary tract obstruction.

Human Papillomavirus (HPV)

A group of viruses that can cause warts and are often associated with cervical and other types of cancer.

Genital Warts

Skin growths in the genital or anal area caused by the human papillomavirus (HPV).

Chlamydia

A common sexually transmitted infection caused by the bacterium Chlamydia trachomatis, often asymptomatic in the early stages.