According to the U.S. Census Bureau, 11% of children in the United States lived with at least one grandparent in 2009 (USA TODAY, June 30, 2011).
test whether the current percentage of all children under the age of 18 years in the United States who live with two parents is different from 69%.
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According to the U.S. Census Bureau, 11% of children in the United States lived with at least one grandparent in 2009(USA TODAY, June 30, 2011). Suppose that in a recent sample of 1580 children, 222 were found to be living with atleast one grandparent. At a 10% significance level, can you conclude that the proportion of all children in the UnitedStates who Currently live with at least one grandparent is higher than 11%? Use both the p-value and the critical—valueapproaches. Round your answers for the observed value ofz and the critival value ofz to two decimal places, and the p-value tofour decimal places. zobserved = the absolute tolerance is +/—0.02p-value = Critical value = We can conclude that the proportion of all children in the U.S. who currently live with at least one grandparent is :1 11%.
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