Question

11 Question Help Listed below are the lead concentrations in al measured in different traditional medicine, Use a 0.10 significance level to test the daim that the mean load concentration for all such medicines is less than 1491 Assume that the sample is a simple random sample 10.5 12.5 16 6.5 5 22.5 13 3 60 Assuming all conditions for conducting a hypothesis test are met, what are the nul and tomative hypotheses? OA H-14 OB H 140 H, με 14 μου H> 1400 06. Hạ 4 = 14 mgia OD 14 H: 14 pole H1400 Determine the testi (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. Ho. There is evidence to conclude that the mean lead concentration for all such medicines is 14 yos

Answer 1

# X = 10.6 s = 5.8443 n=10 Hypothesis : A. Ho: M=14 Myla. Hi : M214 Myly. teststatistic t= X-e s s 10.614 s.8443 rio + -1.84 Pralue = Pl Tg L-1.84) 049 Reject Ho. There is sufficient evidence to conclude that the mean lead conc. for allsuch medicines is less than 14 ugly.