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Name: Listed below are the lead concentrations in μg/g measured in differen
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Description: Listed below are the lead concentrations in μg/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 20 μg/g. Assume that the sample is a

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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Listed below are the lead concentrations in μg/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 20 μg/g. Assume that the sample is a simple random sample.

4.5

7.5

9.5

20.5

1. Determine the test statistic.

(Round to two decimal places as needed.)

2. Determine the P-value.

(Round to three decimal places as needed.)

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