What two hypothesis can I write for a plant experiment?

[匿名]

2021-03-27 3:44 am

I need help on what to write for my two hypothesis. My experiment was about using 1 growth hormone to water 3 pots with, another hormone to water 3 pots with and water 3 pots with just water no hormones. The whole point of the experiment is to measure the height

更新1:

I don’t understand what I’m writing the two hypothesis based on

更新2:

Also the concentrations were the same for all solutions

回答 (1)

az_lender

2021-03-27 4:25 am

You could use "analysis of variance," but in this particular case I would not do that. I would start by doing two separate hypothesis tests.

Experiment 1:
Ho: mean with 1st hormone = mean with no hormone;
Ha: mean with 1st hormone > mean with no hormone.

Experiment 2:
Ho: mean with 2nd hormone = mean with no hormone;
Ha: mean with 2nd hormone > mean with no hormone.

The only result that will require you to do a 3rd hypothesis test is a result where you reject Ho in both of the above experiments. In this case, if both hormones produce a significant increase in height, you will probably want to do
Experiment 3:
Ho: mean w/ 1st hormone = mean w/ 2nd hormone;
Ha: mean w/1st hormone is not equal to mean w/ 2nd hormone.

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