T # 4

Listed below are the lead concentrations in pg/g measured in different traditional medicines. Use a 0.05 significance level to test the claim that the mean lead concentration for all such medicines is less than 17 ug/g. Assume that the sample is a simple random sample. 11 185 19 6.5 8 145 22 14 20 12 2 Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? O A. Ho H = 17 pig/g OB. Ho: = 17 pig/g H1: H 17 ug/g O C. Ho: H> 17 pig/g O D. Ho: H = 17 pig/g H1 p