Question 7 The National Education Association recommends that elementary school students receive 15 minutes of homework per night in first grade. The principle from the Sycamore Elementary School randomly selects 23 first graders and determines that on average they spend 19 minutes per night on homework with a standard deviation of 9 minutes. Determine if the average time spent on homework at the Sycamore Elementary School is different from the recommended time. Use 0.01 level of significance. A. State the null and the alternative hypotheses. B. Select the appropriate inference procedure and verify or state conditions for using it. Specify the rejection region. C. Calculate the value of the test statistic. D. State the test decision and conclusion.