point(s) possible 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 15 ug/g. Assume that the sample is a simple random sample. 20 5 21 145 25 55 7 45 16 13 175 Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? O A. Ho H = 15 pg/g O B. Ho H = 15 pig/g H1 : H # 15 pg/g H1 p> 15 pg/g O C. Ho [> 15 pig/g O D. Ho H= 15 pg/g H1 p