Question

A scientist wishes to test the effectiveness of a chemical on apple yield. He predicts that...

  1. A scientist wishes to test the effectiveness of a chemical on apple yield. He predicts that the chemical will increase apple yield in his orchard. (8)
  1. Design an experiment to test his hypothesis. Make sure to mention your
  2. Indicate your
  • independent variable,
  • dependent variable,
  • constants and
  • control.
  1. Explain how you will measure your dependent variable

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Answer #1

a)

K is number of groups and n is number of samples per each group

b)

Control - plants without chemical application to see the progression

Dependent variable - yield of apple (which we want )

Independent variable - chemicals Applied ( To increase yield)

Constant - resources like water , air and fertilizers ( supplied to plant )

c) The apple yield ( dependent variable) is measured in kilograms with respect to independent variable ( applied chemicals )

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