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 least 2.8 years.

Question

Jeramiah Allen

Mathematics

19 November, 00:03

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 least 2.8 years.

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Nathanial West · Answer 1

This would be the null hypothesis.

A decision to reject this hypothesis means that the mean life span is less than 2.8 years. A decision to fail to reject this hypothesis means that the life span is indeed at least 2.8 years.