Samples were collected from two ponds in the Bahamas to compare salinity values (in parts per thousand). Several samples were drawn at each site. Pond 1: 37.32, 37.36, 37.02, 37.54, 37.03, 36.75, 37.03 Pond 2: 38.89, 39.21, 38.66, 38.71, 39.05 Use a 0.05 significance level to test the claim that the two ponds have the same mean salinity value. (a) The test statistic is (b) The conclusion is (c) We should