Listed below are the lead concentrations in μg/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 16 μg/g. Assume that the sample is a simple random sample.
Listed below are the lead concentrations in μg/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 16 μg/g. Assume that the sample is a simple random sample.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
Listed below are the lead concentrations in
μg/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
16
μg/g.
Assume that the sample is a simple random sample.15.5
18
10
7
4.5
11.5
10
18.5
10
13.5
Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses?
H0:
μ>16
μg/g
H1:
μ<16
μg/g
H0:
μ=16
μg/g
H1:
μ>16
μg/g
H0:
μ=16
μg/g
H1:
μ<16
μg/g
H0:
μ=16
μg/g
H1:
μ≠16
μg/g
Determine the test statistic.
nothing
(Round to two decimal places as needed.)Identify the range of values for P-value. (You will not enter it here; you will use it to make your decsion below.)
State the final conclusion that addresses the original claim.
▼
Reject
Fail to reject
H0.
There is
▼
sufficient
not sufficient
▼
less than
not
equal to
greater than
16
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