7.7.7. let x1,x2, . . , xn be a random sample from n(θ1, θ2). (a) if the constant b is defined by the equation p(x ≤ b) = p where p is specified, find the mle and the mvue of b. (b) modify the r function bootse1.r so that it returns the mvue of part (a) and its bootstrap standard error. (c) run your function in part (b) on the data set discussed in example 7.6.4 for p = 0.75 and 3,000 bootstraps.

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.