Question: Questions: null hypothesis and research hypothesis for each one? a. What is the null hypothesis and research hypothesis of the effect of drug A and

Questions: null hypothesis and research hypothesis for each one?

a. What is the null hypothesis and research hypothesis of the effect of drug A and drug B on a disease?

b. What is the null hypothesis and research hypothesis of the effect of household income on student grades?

c. What is the null hypothesis and research hypothesis of the effect of watering on plant growth?

d. What is the null hypothesis and research hypothesis of the effect of advertising spending on product sales.

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