Listed below are the lead concentrations (in g/g) measured in different Ayurveda medicines. Ayurveda is a traditional medical system commonly used in India. The lead concentrations listed here are from medicines manufactured in the United States. Assume that a simple random sample has been selected. Use a 0.05 significance level to test the claim that the mean lead concentration for all such medicines is less than 14.0 g/g.

3.00

6.48

6.03

5.46

20.53

7.48

12.02

20.47

11.46

17.53

Question content area bottom

Part 1

Identify the null and alternative hypotheses.

H0:

mu

pp

sigma

not equals

less than<

equals=

greater than>

H1:

pp

sigma

mu

greater than>

equals=

less than<

not equals

Part 2

Identify the test statistic.

Part 3

Identify the P-value.

Part 4

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

Accept

Reject

Fail to reject

the null hypothesis. There

is

is not

sufficient evidence at the 0.05 significance level to

warrant rejection of

support

the claim that the mean lead concentration for all Ayurveda medicines manufactured in the United States is less than 14.0 g/g.