Asample is selected from a population with u=50. after a treatment is administered, we find x bar=55 and s squared=64. conduct a hypothesis test to evaluate the significance of the treatment effect if n=4. use a two tailed test with a=.05

answer is attached below

step-by-step explanation:

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.