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Questions and Answers

Which step of the scientific method involves stating a hypothesis?

Step 4: Experiment
Step 2: Research
Step 3: Hypothesis (correct)
Step 1: Observation

What is the purpose of a hypothesis in a scientific experiment?

To organize the procedure of the experiment
To identify the independent and dependent variables (correct)
To make observations and develop hypotheses
To summarize the results of the experiment

How should a hypothesis be written?

Using the words 'WHO' and 'WHAT'
Using the words 'WHERE' and 'WHEN'
Using the words 'IF' and 'THEN' (correct)
Using the words 'WHY' and 'HOW'

What is a testable hypothesis?

A hypothesis that can be supported or rejected by experimentation (D) Signup and view all the answers

What is the relationship between experiments and hypotheses in science?

Hypotheses are used to develop experiments (D) Signup and view all the answers

Which of the following is an example of a hypothesis about a population parameter?

The mean monthly income for college graduates is over $5000. (B) Signup and view all the answers

Which of the following is an example of a hypothesis that can be tested through an experiment?

The mean standardized test score for schools in Cupertino is the same as the mean scores for schools in Los Altos. (C) Signup and view all the answers

Which of the following is an example of a hypothesis that cannot be tested through an experiment?

The lung cancer rates in California are lower than the rates in Texas. (A) Signup and view all the answers

Which of the following is an example of a hypothesis about a population proportion?

At least 20% of juvenile offenders are caught and sentenced to prison. (A) Signup and view all the answers

Which of the following is an example of a hypothesis about a population mean?