Listed below are the lead concentrations in ug/g measured in different traditional medicines. Use a 0.01 significance level to test the claim that the mean lead concentration for all such medicines is less than 17 ugly. Assume that the sample is a simple random sample 13 17 5 20 6 9.5 18 17 14 175 14 Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? O A. Ho : p=17 pg/g B. Ho : [> 17 pg/g H. : p= 17 ug/g H,: p 17 pg/g Determine the test statistic. (Round to two decimal places as needed.)