Listed below are the lead concentrations​ (in μg/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 0.10 significance level to test the claim that the mean lead concentration for all such medicines is less than 14.0 μg/g.   2.99 6.52 6.00 5.49 20.45 7.45 12.00 20.53 11.46 17.50

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