o compare the growth of this flower in three types of soil treatments, specifically the effects of nitrogen. (1) Group 1: No nitrogen added to the soil, (2) Group 2: Low amounts of nitrogen added to the soil, and (3) Group 3: High amounts of nitrogen added to the soil. The weight of dry biomass of Erigeron annuus (mg) planted in the containers under each of the three treatments was recorded and shown below.
Study: What type of soil conditions are favorable for the growth of a common flowering species such as Daisy Fleabane (Erigeron annuus) often found along roadsides? Suppose that a controlled research study was conducted to compare the growth of this flower in three types of soil treatments, specifically the effects of nitrogen. (1) Group 1: No nitrogen added to the soil, (2) Group 2: Low amounts of nitrogen added to the soil, and (3) Group 3: High amounts of nitrogen added to the soil. The weight of dry biomass of Erigeron annuus (mg) planted in the containers under each of the three treatments was recorded and shown below.
Express the null and alternative hypotheses with appropriate symbols for parameters.
H0:
Ha:
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