Calculate the test statistic (STATISTICS AND PROBABILITY)

5. A forester is studying the number of cavity trees in old growth stands in Arroceros Forest Park in Manila. He wants to know if there is a significant difference between the mean number of cavity trees in Arroceros Forest Park and the old growth stands in La Mesa Ecopark . He collects two independent random samples from each forest. Arroceros La Mesa Forest Park Ecopark X 39.6 43.9 S 9.4 10.7 n 51 stands 56 stands