Question

Listed below are the lead concentrations in muμ​g/g measured in different traditional medicines. Use a 0.01 significance level to test the claim that the mean lead concentration for all such medicines is less than 17 muμ​g/g? 20.5     7.5     17     9.5     22.5     5     7.5     13     12.5     13.5 What are the null and alternative​ hypotheses? Determine the test statistic Determine the​ P-value. State the final conclusion that addresses the original claim.

Answer 1