Mathematics, 27.05.2020 07:00 Mlmyers81

Does soil filled with nitrogen increase the weight of worms when compared to soil without nitrogen? The weights of 14 randomly selected worms are taken, 7 in soil with nitrogen, and 7 in soil without nitrogen. The mean weights of worms in soil with nitrogen was 42.4 micrograms, while the mean weights of worms in soil without nitrogen was 39.4 micrograms. A researcher randomized the data over 100 trials, and the difference of means for each trial is shown in the dot plot below. What can the researcher conclude from this study?

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