Determine whether the claim stated below represents the null hypothesis or the a

Question

Determine whether the claim stated below represents the null hypothesis or the alternative hypothesis. If a hypothesis test is performed, how should you interpret a decision that (a) rejects the null hypothesis or (b) fails to reject the null hypothesis?

A researcher claims that the standard deviation of the life of a certain type of lawn mower is at most 3.3 years.

Does the claim represent the null hypothesis or the alternative hypothesis?

Since the claim ( Contains/ does not contain ) a statement of equality, it represents the ( null/ alternative ) hypothosis.

How should you interpret a decision that rejects the null hypothesis?

There is ( sufficcient/ unsuficcient ) evidence to ( reject / support )the claim that the standard deviation of the life of a certain type of lawn mower is at most 3.3 years.

Explanation / Answer

Since this claim Contains a statement of equality, it represents the null hypothesis.

There is sufficient evidence to reject the claim that the standard deviation of the life of a certain type of lawn mower is at most 3.3 years.

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