The Effect Of Red Light Treatment On The Rate Of Photosynthesis

768 Words Dec 3rd, 2015 4 Pages
Paragraph 1 With a p- value of 0.059229 between our red light treatment and our green light treatment, we fail to reject the null hypothesis and reject our alternative hypothesis because the value was higher than 0.05. Our alternative hypothesis was that red light would be more effective than green light on the rate of photosynthesis and our null hypothesis was that the color of light would not affect the rate of photosynthesis. Without enough evidence to support the alternative hypothesis, we fail to reject the null hypothesis due to a high p-value. Although the p-values when the red light treatment was compared to the white light control treatment our p-value was .004825, giving enough evidence to show that we reject the null hypothesis that red light would not affect the rate of photosynthesis. The red light treatment did have an effect on the rate of photosynthesis. The green light treatment compared to the white light control treatment, however, had a p- value of .142247. With such a high p-value we fail to reject our null hypothesis that the green light would not affect the rate of photosynthesis. But overall, we reject our alternative hypothesis and fail to reject the null hypothesis when comparing our green light treatment to the right light treatment.
Paragraph 2 The mechanism behind our independent variable, color of light bulb used, can affect the rate of photosynthesis is that each color has a different wave length. Depending upon which color the plant absorbs…

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