Engineering, 25.12.2020 21:50 chops85
Mean length of life of a certain cutting tool is 41.5 hours with a standard deviation of 2.5 hours. What is the probability that a simple random sample of size 50 drawn from this population will have a mean between 40.5 and 42 hours
Answers: 3
Another question on Engineering
Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Engineering, 04.07.2019 18:10
Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1
Answers: 1
Engineering, 04.07.2019 18:10
Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed.gi) ifn 1, what will happen to the material when transformed material when
Answers: 1
Engineering, 04.07.2019 18:10
An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0
Answers: 3
You know the right answer?
Mean length of life of a certain cutting tool is 41.5 hours with a standard deviation of 2.5 hours....
Questions
History, 26.02.2021 05:50
Mathematics, 26.02.2021 05:50
Mathematics, 26.02.2021 05:50
Mathematics, 26.02.2021 05:50
Mathematics, 26.02.2021 05:50
Mathematics, 26.02.2021 05:50
English, 26.02.2021 05:50
Health, 26.02.2021 05:50
Chemistry, 26.02.2021 05:50
Business, 26.02.2021 05:50
Mathematics, 26.02.2021 05:50
