It has been reported that 40% of children in United States live in homes where both parents work to make ends meet. A school administrator claimed that the more than 40% of children in his school district lived in homes where both parents work to make ends meet. In the sample of 300 children, 138 of them lived in homes where both parents work to make ends meet. Describe the correct null and alternative hypotheses that the school administrator wishes to test. Compute the test statistic that would be used for conducting the desired test. Find the p-value of this test. Assuming ? = 0.01, what is your conclusion?