Listed below are the lead concentrations in μ​g/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 μ​g/g. Assume that the sample is a simple random sample

13
9
20.5
9.5
21.5
8
4
21
20
11.5

=<

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. 

(fail to reject/reject) H0. There is (sufficient/not sufficient) evidence to conclude that the mean lead concentration for all such medicines is (not/greater than/equal to/less than) 16ug/g.

listed below are the lead concentrations in meansured 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 18. assume that the sample is a simple random sample.

9, 22.5,19.5,15.5,17,16.5,21,2.5,7,15

a. assuming all conditions for conducting a hypotheses test are met, what are the null and alternative hypotheses?

b. determine the test statistic

c. determine the p-value

d. state the final conclusion that addresses the original claim.

(reject/fail to reject)H0. There is (sufficient/ not sufficient) evidence to conclude that the mean lead concentration for all such medicines is (equal to, greater than, not, less than) 18.