Assume that a simple random sample has been selected and test the given claim. Listed below are the lead concentrations in g/g 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 13 g/g.

3.07.06.05.521.07.511.021.511.018.0

Identify the null and alternative hypotheses for this test.

A.

H0: =13 g/g

H1: >13 g/g

B.

H0: =13 g/g

H1: 13 g/g

C.

H0: =13 g/g

H1: <13 g/g

D.

H0: <13 g/g

H1: =13

Identify the value of the test statistic.

(Round to two decimal places asneeded.)

Identify theP-value.

(Round to three decimal places asneeded.)

State the conclusion about the nullhypothesis, as well as the final conclusion that addresses the original claim.

A.

Failtoreject H0. There isnot sufficient evidence to support the claim that the mean lead concentration for all such medicines is less than 13 g/g.

B.

Failtoreject H0. There is sufficient evidence to support the claim that the mean lead concentration for all such medicines is less than 13 g/g.

C.

Reject H0. There is sufficient evidence to support the claim that the mean lead concentration for all such medicines is less than 13 g/g.

This is the correct answer.

D.

Reject H0. There isnot sufficient evidence to support the claim that the mean lead concentration for all such medicines is less than 13 g/g