Question

A researcher conducts an experiment to examine the effect of a new fertilizer on plant growth. She applies the fertilizer a regular intervals to 68 pepper plants. Another 59 plants receives just water. Without fertilizer n=59 With fertilizer n-68 Inches Tall Tell whether the following statement provides a valid conclusion that can be drawn from the doors Statement 1: The fertilizer had a negative effect on the plant height because the shortest plants in the (0) Valid (ii) Invalid

Answer 1

Statement 1:

Invalid statement.

The number of plants having tall height is greater for plants with fertilizer as compared to plans without fertilizers.

Statement 2

Valid statement.

Because median height for the plants without fertilizer is approximately around 23, and for the plants with fertilizers is lies between 24 to 25.