Listed below are the lead concentrations in ug/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 15 ug/g. Assume that the sample is a simple random sample. 3.5 13.5 9 17 17 9.5 22 3 8.5 16.5 Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? O B. Ho: H = 15 ug/g O A. Ho: H= 15 ug/g H1: H#15 µg/g H1: >15 ug/g OC. Ho H> 15 ug/g Hy H<15 ug/g O D. Ho: H=15 ug/g H1: H< 15 ug/g

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