An agricultural research station investigated the effectiveness of two organic fertilizers, BioGrow and SoilNutri, under different soil conditions: Sandy soil and Clay soil. The effectiveness of each fertilizer was measured using a standardised plant growth index from 1 to 15, where 1 represents negligible growth enhancement and 15 represents exceptional growth enhancement.

The median plant growth index ratings for each fertilizer under both soil conditions are shown in Table 1.

Table 1: Median plant growth index ratings for BioGrow and SoilNutri under Sandy and Clay soil conditions

	Sandy soil	Clay soil
BioGrow	4.5	11.5
SoilNutri	12.0	5.5

What conclusion can be drawn from the data in Table 1? Justify your answer.

The median plant growth index ratings for each fertilizer under both soil conditions are shown in Table 1.

Table 1: Median plant growth index ratings for BioGrow and SoilNutri under Sandy and Clay soil conditions

	Sandy soil	Clay soil
BioGrow	4.5	11.5
SoilNutri	12.0	5.5

What conclusion can be drawn from the data in Table 1? Justify your answer.

Data handling and analysis

Question 54

Table 1: Median plant growth index ratings for BioGrow and SoilNutri under Sandy and Clay soil conditions

Markscheme

Data handling and analysis

Question 54

Table 1: Median plant growth index ratings for BioGrow and SoilNutri under Sandy and Clay soil conditions

Markscheme

Data handling and analysis

Question 54

Table 1: Median plant growth index ratings for BioGrow and SoilNutri under Sandy and Clay soil conditions

Data handling and analysis Questions

Data handling and analysis

Question 54

Table 1: Median plant growth index ratings for BioGrow and SoilNutri under Sandy and Clay soil conditions

Data handling and analysis Questions