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%.