Listed below are the lead concentrations in ugg 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 20 upg Assume that the sample is a simple random sample 20.5 11.5 4.5 21 21 20.5 9.5 21.5 17.5 10 Assuming all conditions for conducting a hypothesis test are met, what are the null and alterative hypotheses? OA. H20 pag H20 pg/ OC. H 20 pa H20 pog Determine the test statistic (Round to two decimal places as needed) Determine the P-value. (Round to three decimal places as needed.) State the final conclusion that addresses the original claim H. There is OB. Ho>20 H20 OD. Ho20 H20 evidence to conclude that the mean lead concentration for all such medicines is 20