For a p-chart or c-chart, what is the implication of a negative value for the LCL?
a) A calculation error must have occurred.
b) The value of sigma must be reduced.
c) The process has too many errors.
d) The process is in a state of control.
e) The LCL can effectively be rounded up to 0.
Which of the following waiting line systems best describes a men’s clothing store,
where one of the sales clerks first assists the customer in selecting the material and style
and then one of the tailors measures the customer to ensure a custom-fitted suit?
a) single-server, single-phase
b) multi-server, multi-phase
c) multi-server, single-line, single-phase
d) multi-server, multi-line, single-phase
e) single-server, multi-phase