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. 3.00 6.47 5.96 5.48 20.49 7.53 11.99 20.49 11.53 17.53 D

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