Step 1 :The claim represents the alternative hypothesis. This is because the scientist is claiming that the mean incubation period for the eggs of a species of bird is less than 37 days, which is not a statement of no effect or no difference, but a specific claim.
Step 2 :(a) If we reject the null hypothesis, it means that we have found statistically significant evidence to support the alternative hypothesis. In this case, it would mean that we have found evidence to support the scientist's claim that the mean incubation period for the eggs of a species of bird is less than 37 days.
Step 3 :(b) If we fail to reject the null hypothesis, it means that we have not found statistically significant evidence to support the alternative hypothesis. In this case, it would mean that we have not found evidence to support the scientist's claim that the mean incubation period for the eggs of a species of bird is less than 37 days.
Step 4 :Final Answer: The claim represents the \(\boxed{\text{alternative hypothesis}}\). (a) If we reject the null hypothesis, it means that we have found evidence to support the scientist's claim that the mean incubation period for the eggs of a species of bird is less than 37 days. (b) If we fail to reject the null hypothesis, it means that we have not found evidence to support the scientist's claim that the mean incubation period for the eggs of a species of bird is less than 37 days.