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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 16 ug/g. Assume that the sample is a simple random sample. 9 7 21.5 4.5 12 9.5 16.5 3 11 18.5 Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? O A. Ho: H > 16 pig/g O B. Ho: H = 16 pig/g H1: H 16 pig/g H1: H