Arandom sample of 12 second-year university students enrolled in a business statistics course was drawn. at the course's completion, each student was asked how many hours he or she spent doing homework in statistics. the data are listed below. 515264595961635861505157 it is known that the population standard deviation is 6. the instructor has recommended that students devote 5 hours per week for the duration of the 12-week semester, for a total of 60 hours. test to determine whether there is evidence at the 0.025 significance level that the average student spent less than the recommended amount of time. fill in the requested information below.

The school track has eight lanes. each lane is 1.25 meters wide. the arc at each end of the track is 180. the distance of the home straight and the radii for the arcs in the 1st 4 lanes are given. s=85m r1=36.5m r2=37.75m r3=39m r4=40.25m part one: find the radii of lanes 5 through 8 of the track. show your work. part two: if max ran around lane one, how far did he run? show your work and explain your solution. part three: max wants to run a total of three laps around the track, choose two additional lanes (2-8) for him to run and find the distance around those two lanes. show your work and round to the hundredths. part 4: based on your lane choices in part three, what was the total distance max ran in the three laps around the track?