A random sample of 100 automobile owners in the state of New Jersey shows that an automobile is driven on average 23,500 kilometers per year with a standard deviation of 3,900 kilometers. Assume the distribution of measurements to be approximately normal. (a) Construct a 99% two-sided confidence interval for the average number of kilometers an automobile is driven annually in New Jersey. (b) Construct a 90% two-sided confidence interval on σ, the standard deviation of kilometers an automobile is driven annually in New Jersey

Cameron indoor stadium at duke university is one of the most revered sites in all of college basketball, as well as in all of sports period. duke’s men’s and women’s basketball programs have attained quite a few wins in the building over the last seventy years. cameron indoor stadium is capable of seating 9,460 people. for each game, the amount of money that the duke blue devils’ athletic program brings in as revenue is a function of the number of people in attendance. if each ticket costs $45.50, find the domain and range of this function.