Listed below are the lead concentrations (in ug/g) measured in different Ayurveda medicines. Ayurveda is a traditional medical system commonly used in India. The lead concentrations listed here are from medicines manufactured in the United States. Assume that a simple random sample has been selected. Use a 0.05 significance level to test the claim that the mean lead concentration for all such medicines is less than 14.0 ug/g.


3.01, 6.50, 6.01, 5.54, 20.52, 7.47, 11.96, 20.46, 11.53, 17.53

Identify the test statistic and p value