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State the null and alternative hypothesis in words for the following situations. a. Does living in...

State the null and alternative hypothesis in words for the following situations.

a. Does living in a home with lead-based paint increase the risk of ADHD?

b. Does having a pet in the home reduce anxiety levels?

math   Statistics-And-Probability   
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Answer #1

a)

Null Hypothesis:

Living in a home with lead-based paint has no effect in the risk of ADHD.

Alternative Hypothesis:

Living in a home with lead-based paint has an effect in the risk of ADHD.

OR

Living in a home with lead-based paint increase the risk of ADHD.

b)

Null Hypothesis:

Pet in the home does not reduce anxiety levels.

Alternative Hypothesis:

Pet in the home reduce anxiety levels.

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