Engineering, 13.11.2019 18:31, lunarStudios123
30. a businessweek/harris survey asked senior executives at large corporations their opinions about the economic outlook for the future. one question was, "do you think that there will be an increase in the number of full-time employees at your company over the next 12 months? " in the current survey, 220 of 400 executives answered yes, while in a previous year survey, 192 of 400 executives had answered yes. provide a 95% confidence interval estimate for the difference between the proportions at the two points in time. what is your interpretation of the interval estimate? anderson, david r.. essentials of statistics for business and economics (p. 472). south-western college pub. kindle edition.
Answers: 3
Engineering, 04.07.2019 18:10, DestyHilBan1183
Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.
Answers: 3
Engineering, 04.07.2019 18:20, CelesteN64
Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options
Answers: 2
30. a businessweek/harris survey asked senior executives at large corporations their opinions about...
English, 27.05.2021 04:20