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18. The FDA's Center for Food Safety and Applied Nutrition suggests the recommended dietary allowance...

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18. The FDA's Center for Food Safety and Applied Nutrition suggests the recommended dietary allowance (RDA) for calcium for woman aged 19 to 24 is 1200 milligrams per day. For women 25 and older, the allowance drops to 800 milligrams. In a sample of 120 women aged 19 to 24, only 32 women met or exceeded the RDA for calcium. In another sample of 150 women aged 25 and older, 56 of them met or exceeded the RDA for calcium. Construct and interpret a 98% confidence interval for the difference in population proportions for the two age groups of women. (No work show = No point)

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