§ 52.04 – What options does this template provide on sampling structure?

(a)    Period-based sampling plans – you sample the same number of service units for each period (e.g., monthly).

(b)   Interval-based sampling plans – you sample the same number of service units one each sample day, and the interval between the sample days is constant.

(c)    In determining whether using interval-based sampling plans, you should consider their advantages and disadvantages:

(1)   the advantage of using a sampling plan that you have been using for years,

(2)   the advantage of using regular sample days throughout a year,

(3)   the disadvantage of a large number of times you need to sample during a year,

(4)   the disadvantage of not being able to consider the PPMT and grouping options, and

(5)   the disadvantage of a likely larger annual sample size due to rounding in determining the daily sample size.