The population in Section 7.8, Exercise 39, where per capita

The population in Section 7.8, Exercise 39, where per capita production is a random variable with p.d.f. g(x) = 5.0 for 1.0 ≤ x ≤ 1.2.
Use the normal approximation to test the above hypotheses about growing populations. In each case, habitat improvements are tried and the population grows from 1 to 250 individuals in 50 years. Is there reason to think that the habitat improvements helped?