Sample size calculations for a continuous outcome require specification of the anticipated variance; inaccurate specification can result in an underpowered or overpowered study. For this reason, ...

This is a preview. Log in through your library . Abstract Most simple sampling procedures with inclusion probabilities proportional to size are available only for samples of size two. For some of the ...

The Haryana agriculture and farmers welfare department has rolled out a new procedure to collect samples for testing of fertilisers and pesticides from the premises of manufacturers and wholesalers ...