At one school the average amount of time that tenth-gradersspend watching televi

At one school the average amount of time that tenth-gradersspend watching television each week is 18.4 hours. Theprincipal introduces a campaign to encourage the students to watchless television. One year later the principal wants toperform a hypothesis test to determine whether the average amountof time spent watching television per week has decreased.Formulate the null and alternative hypotheses for the studydescribed.