Which of the following statements concerning control chart limits is true?
the smaller the value of z, the more narrow the control limits are and the more sensitive the chart is to changes in the production process
the larger the value of z, the more narrow the control limits are and the more sensitive the chart is to changes in the production process
the smaller the value of z, the wider the control limits are and the less sensitive the chart is to changes in the production process
the larger the value of z, the more narrow the control limits are and the less sensitive the chart is to changes in the production process.