A CI is desired for the true average stray-load loss μ (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. Assume that stray- load loss is normally distributed with σ = 2.0. (Round your answers to two decimal places.) (a) Compute a 95% CI for μ when n = 25 and x = 54.3. watts (b) Compute a 95% CI for μ when n = 100 and x = 54.3. watts (c) Compute a 99% CI for μ when n = 100 and x = 54.3. ]) watts (d) Compute an 82% CI for μ when n = 100 and x = 54.3. watts (e) How large must n be if the width of the 99% interval for u is to be 1.0? (Round your answer up to the nearest whole number.)

A rocket will carry a communications satellite into low Earth orbit. Suppose that the thrust during the first 200 sec of fligh is provided by solid rocket boosters at different points during liftoff. The graph shows the acceleration in G-forces (that is acceleration in 9.8-m/sec2 increments) versus time after launch. a. Approximate the interval(s) over which the acceleration is increasing. b. Approximate the interval(s) over which the acceleration is decreasing. c. How many turning points does the graph show? d. Based on the number of turning points, what is the minimum degree of a polynomial function that could be used to model acceleration versus time? Would the leading coefficient be positive or negative? e. Approximate the time when the acceleration was the greatest. f. Approximate the value of the maximum acceleration. Acceleration in G-Forces vs. Time after Liftoff {(184, 2.85), 2.5 2H(12, 1.36)| 1.5 0.5 |(68,0.97)| 40 80 120 160 200 Elapsed Time (sec) Acceleration (G-Forces)

Find the average rate of change of k(q) = 1. on the interval between q = 1 and q = 3. 2-q- +3

5. Determine the average velocity of the function f(t) = vt +1 between the time intervals t = 3 and t = 8.