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Exercise 2:
Determine which of the following observations are testable. For those that are testable:
? Write a hypothesis and null hypothesis
? What would be your experimental approach?
? What are the dependent and independent variables?
? What is your control?
? How will you collect your data?
? How will you present your data (charts, graphs, types)?
? How will you analyze your data?
1. When a plant is placed on a window sill, it grows faster than when it is placed on a
coffee table in the middle of the living room.
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2. The teller at the bank with brown hair and brown eyes and is taller than the other
tellers.
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3. I caught four fish at the seven o'clock in the morning but didn't catch any at noon.
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4. The salaries at Smith and Company are based on the number of sales and Billy
makes 3,000 dollars more than Joe.
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5. When Sally eats healthy foods and exercises regularly, her blood pressure is lower
than when she does not exercise and eats fatty foods.
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6. The Italian restaurant across the street closes at 9 pm but the one two blocks away
closes at 10 pm.
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7. Bob bought a new blue shirt with a golf club on the back for twenty dollars.

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8. For the past two days the clouds have come out at 3 pm and it has started raining at
3:15 pm.
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9. George did not sleep at all last night because he was up finishing his paper.
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10. Ice cream melts faster on a warm summer day than on a cold winter day.
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11. How can you apply scientific method to an everyday problem? Give one example.

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