Exercise 4.4

With LINE-6, draw a non-parametric regression of FDEQ on EXPEQ for an interval of EXPEQ of 0 to 500 FCFA. Find the level of food expenditures expected at a level of total expenditures equal to the food poverty line estimated in ex-4.1.

Answer

STEP 1: Initialising the sampling weight: EDIT|Set Sample Design

After choosing the appropriate variable(s), click on the button OK.

STEP 2: Use the DAD Application: DISTRIBUTION|NON PARAMETRIC REGRESSION

After choosing the appropriate variable(s) and parameters, click on the GRAPH button.

RESULTS

Non Parametric Regression (Distribution)

Session Date	Tue Jul 06 10:28:35 EDT 2004
Execution Time	0.016 sec
FileName	LINE-6.daf
OBS	1000
Sampling Weight	WHHLD
Variable of interest	EXPEQ
Size variable	SIZE
Group variable	No Selection
Group Number	1
Level of X	304.6764017
Expected Y	139.66181684
Smoothing Parameter	57.44060265

Share of food expenditures	=	Food expenditures	=	139.66	=	0.458393
		Total expenditures		304.68