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LIST OF TABLES
SURVEY METHODOLOGY USED IN SIERRA LEONE RURAL
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05 level analysis annual expenditure estimates average Cassava commodity expenditures comparing the two-interview correlated t-test data set day of recall days of information difference enumeration areas equal expendi expenditure estimates based expenditure means expenditure records four-day fourth day indices interview frequency interview schedule interview set interview subset interviews per month Kola Nuts kth month l2 months l6 commodity groups larger level of significance mean annual commodity mean expenditure estimates mean monthly expenditure measurement error memory decay monthly expenditure estimates months of data Moser and Kalton non-parametric tests normal distribution NS NS NS null hypothesis number of days observed one-inter one-interview independent set one-interview subset overlapping interview percent population procedure questionnaire recall periods reference period sample error second interview seven-day set shown in Table Sierra Leone sign test standard error statistical survey design telescoping effect Tobacco and Kola total mean expenditure ture estimates two-interview set xSjk XTjk