(a) Use the following data to compute a 95% CI for ₁-₂ m-661, 229, 1514, n=402, y-2613, and 1116. (Round your answers to two decimal places.) Does the resulting interval suggest that has been precisely ustimated? O The interval is fairty narrow, which does not suggest a precise estimate. The interval is fairly wide, which suggests a precise estimate. O The interval is fairly wide, which does not suggest a precise estimate. The interval is fairly narrow, which suggests a precise estimate. (b) Use the following data to compute a 95% upper confidence bound for ₁-y: m50, x=43,600, ₁2500, n50,36,300, and 1800. (Round your answer to two decimal places.)

Find the greates possible value of A+B+C+D. 6. A^(3)-digit number is 25 times the sum of its three digits. What is the greatest possible value of this 3-digit number?

Which set of equations best models the point of intersection of the arrow and the target? y = 0.002x ^ 2 + 0.25x + 6 and y = x y = - 0.002x ^ 2 + 0.25x + 6 and y = 0.15x y = - 0.002x ^ 2 + 0.25x + 6 and y = x y = - 0.002x ^ 2 + 0.25x + 6 and y = - x

Q4: Mr. Iqbal Al Hinai works in Alibaba Digital Store, Muscat. He is paid 4.5 OMR per hour. Ms. Rawan works in Omantel Retail Store and she is paid 5 OMR per hour and both of them are eligible for overtime (time-and-a-half pay). Both are supposed to work minimum 7 hours per day and 35 hours per week. If they work less than 7 hrs per day or 35 hrs per week, they will be paid 4 OMR per hour for that week. Last month Mr. Iqbal worked for 37 hrs, 38 hrs 41 hrs and 32 hrs per week while Ms. Rawan worked for 34 hrs, 32 hrs, 31 hrs and 35 hrs per week. a) How much gross pay Mr. Iqbal and Ms. Rawan would receive for the last month? b) If Ms. Rawan had been paid monthly salary, she would have earned more. Give reasons to your answer.