a farmer would like to determine if a new liquid fertilizer is an improvement compared with the fertilizer…

a farmer would like to determine if a new liquid fertilizer is an improvement compared with the fertilizer currently used. to collect data, two methods are considered. method 1: visit a local farm currently using the new liquid fertilizer and measure the heights of plants grown at the farm. method 2: choose a plot of land and divide it into 16 smaller plots. randomly select 8 of the plots to use the new fertilizer and 8 of the plots to use the current fertilizer. measure and compare plant heights in the 16 plots. which statement about these methods is true? method 1 is an experiment because the farm uses the new fertilizer. method 2 is an experiment because there are 16 different plots used. methods 1 and 2 are both experiments because both use the new fertilizer. method 2 is an experiment because the plots are randomly assigned a fertilizer.

a farmer would like to determine if a new liquid fertilizer is an improvement compared with the fertilizer currently used. to collect data, two methods are considered. method 1: visit a local farm currently using the new liquid fertilizer and measure the heights of plants grown at the farm. method 2: choose a plot of land and divide it into 16 smaller plots. randomly select 8 of the plots to use the new fertilizer and 8 of the plots to use the current fertilizer. measure and compare plant heights in the 16 plots. which statement about these methods is true? method 1 is an experiment because the farm uses the new fertilizer. method 2 is an experiment because there are 16 different plots used. methods 1 and 2 are both experiments because both use the new fertilizer. method 2 is an experiment because the plots are randomly assigned a fertilizer.

Answer

Brief Explanations:

An experiment involves manipulating a variable (in this case, the type of fertilizer) and randomly assigning treatments to experimental units. Method 2 randomly assigns the new and current fertilizers to different plots, which is the key characteristic of an experiment. Method 1 just observes plants at a farm already using the new fertilizer without any random assignment or manipulation of variables.

Answer:

Method 2 is an experiment because the plots are randomly assigned a fertilizer.