this exercise). Opuiaor lound at the beginning of 8. Interpret the data from the
ID: 142387 • Letter: T
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this exercise). Opuiaor lound at the beginning of 8. Interpret the data from the graph made in Question 7 Exercise 2: Testable Observations Determine which of the following observations are testable. For those that are testable: Determine if the observation is qualitative or quantitative Write a hypothesis and null hypothesis What would be your experimental approach? What are the dependent and independent variables? What are your controls-both positive and negative? How will you collect your data? How will you present your data (charts, graphs, types)? How will you analyze your data? Observations A plant grows three inches faster per day when placed on a window sill than it does when placed on a on a coffee table in the middle of the living room. 1. 2. The teller at the bank with brown hair and brown eyes is taller than the other tellers. OeScience Labs, LUExplanation / Answer
1) The height of the plant is a quantitative variable.
Hypothesis: Plants placed near window sill grows taller than the plants placed on coffee table in the middle of the room.
Null hypothesis: There is no difference in height of the plants placed near window sill and those placed in middle of the room.
Dependent variable: height of the plant.
Independent variable: water and nutrients
Controls: Plants placed inside a dark room (negative) and those placed in open area (positive).
Data collection: Measure the increase in height of the plants everyday.
Data presentation: Tables, scatter plot
Analysis: unpaired t test
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