Determine which of the following observations are testable F

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?

1.The teller at the bank with brown hair and brown eyes is taller than the other tellers.

2. For the past two days, the clouds have come out at 3 pm and it has started raining at 3:15 pm.

Solution

1.The teller at the bank with brown hair and brown eyes is taller than the other tellers. - Not a testable hypothesis

2. For the past two days, the clouds have come out at 3 pm and it has started raining at 3:15 pm. - Testable hypothesis

Hypothesis: Appearance of clouds is followed by rain immediately after 15 minutes.

Null hypothesis: When clouds appear, it will not rain after 15 minutes.

Experimental approach: Tracking the weather report and observing when it is actually starts raining.

Dependent variable: Number minutes that take for the rain to start after clouds appear in the sky.

Independent variable: Appearance of clouds in the sky

Positive control: Weather without clouds

Negative control: Weather without rain