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Question Help Listed below are the lead concentrations in ugg measured in different traditional medicines Use a 0.10 significance level to test the claim that the mean lead concentration for all such medicines is less than 18 pg/g Assume that the sample is a simple random sample 18 13.5 145 14 8 21 18.5 8.5 13 9.5 Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? OA. H > 18 pg/g H, p 18 pg 9 OD. Ho u = 18 ugg H 18 pg/g O A. Hou > 18 pg/g Hy 18 ug/g H 18 pg/g 0 C. Ho HT 18 19g H + 18 pg/g OD. Ho = 18 pg/g 18 ug/g H H 18 ug/g OC. Ho H = 18 ug/g Hy #18 pg/g D. Ho f1 = 18 pg/g H