FORM 2 (Optional) Appropriate for stratified simple or systematic random sampling designs. Calculation of Weighted Retailer Violation Rate State: FFY: 2016 (4) (8) (10) (2) n1 (7) (9) pw N’=N(n1/n) Number of (5) (6) Estimated Stratum (11) N p=x/n2 w=N’/Total Number of (3) Sample n2 x Stratum Number of Column 8 Contribution s.e. (1) Outlets Outlets Number of Number of Retailer Eligible Relative to State Standard n Stratum in Sampling Original Found Outlets Outlets Found Violation Outlets in Stratum Weighted Error of Name Frame Sample Size Eligible Inspected in Violation Rate Population Weight RVR Stratum RVR Total N - number of outlets in sampling frame n - original sample size (number of outlets in the original sample) n1 - number of sample outlets that were found to be eligible n2 - number of eligible outlets that were inspected x - number of inspected outlets that were found in violation p - stratum retailer violation rate (p=x/n2) - estimated number of eligible outlets in population N’ (N’=N*n1/n) w - relative stratum weight Column 8) (w=N’/Total pw - stratum contribution to the weighted RVR s.e. - standard error of the stratum RVR
FORM 2 (Optional) Appropriate for stratified simple or systematic random sampling designs. Calculation of Weighted Retailer Violation Rate State: FFY: 2016 (1) Stratum Name (2) N Number of Outlets in Sampling Frame (3) n Original Sample Size (4) n1 Number of Sample Outlets Found Eligible (5) n2 Number of Outlets Inspected (6) x Number of Outlets Found in Violation (7) p=x/n2 Stratum Retailer Violation Rate (8) N’=N(n1/n) Estimated Number of Eligible Outlets in Population (9) w=N’/Total Column 8 Relative Stratum Weight (10) pw Stratum Contribution to State Weighted RVR (11) s.e. Standard Error of Stratum RVR Total N - number of outlets in sampling frame n - original sample size (number of outlets in the original sample) n1 - number of sample outlets that were found to be eligible n2 - number of eligible outlets that were inspected x - number of inspected outlets that were found in violation p - stratum retailer violation rate (p=x/n2) N’ - estimated number of eligible outlets in population (N’=N*n1/n) w - relative stratum weight (w=N’/Total Column 8) pw - stratum contribution to the weighted RVR s.e. - standard error of the stratum RVR
FFY%202016%20ASR.docx