According to a report on sleep deprivation by the Centers forDisease Control and Prevention, the proportion of California residents who reported insufficient rest or sleepduring each of the preceding 30 days is 8.0%, while this proportion is 8.8% for Oregon residents. Thesedata are based on simple random samples of 11,545 California and 4,691 Oregon residents. Calculate a 95%confidence interval for the difference between the proportions of Californians and Oregonians who are sleepdeprived and interpret it in context of the data

Mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.