A coin mint has the specification that specific coin has mean weight of 2.5g. A sample of 32 coins was collected. Those coins have a mean weight of 2.49522g and standard deviation of 0.01571g. Employ a 0.05 significance level to test the claim that this sample is from a population with mean weight equal to 2.5g. Determine the test statistic and what is the p-value?