Poverty and Calcium. Calcium is the most abundant mineral in the body and also one of the most important. The recommended daily allowance(RDA) of calcium for adults is 800 milligrams. A random sample of 20 people with incomes below the poverty level  gives the daily calcium intakes: 686, 433, 743, 747, 993, 994, 1025, 620, 459, 854, 425, 506, 703 770, 802, 790, 785, 459, 745, 802 At the 5% significance level, do the data provides sufficient evidence to conclude that the mean calcium intake of all people with incomes below the poverty level is less that the RDA of 800 milligrams? a) State null and alternative hypothesis b) Test Statistics c) Critical value d) Conclusion

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9. Poverty and Calcium. Calcium is the most abundant mineral in the body and also one of the most important. The recommended daily allowance(RDA) of calcium for adults is 800 milligrams. A random sample of 20 people with incomes below the poverty level  gives the daily calcium intakes:

686, 433, 743, 747, 993, 994, 1025, 620, 459, 854, 425, 506, 703

770, 802, 790, 785, 459, 745, 802

At the 5% significance level, do the data provides sufficient evidence to conclude that the mean calcium intake of all people with incomes below the poverty level is less that the RDA of 800 milligrams?

a) State null and alternative hypothesis

b) Test Statistics

c) Critical value

d) Conclusion

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