The mean time between failures mtbf is the expected time

Assignment Help Basic Statistics

Reference no: EM13634055

A manufacturer of disk drives for notebook computers wants a MTBF of at least 50,000 hours. Recent test results for 15 units were one failure at 10,000 hours, one at 24,000 hours, and two more at 45,000 hours. The remaining units were still running at 60,000 hours.

A) Number of failures per unit-hour =_____failures per hour (round your response to eight decimal places)

B) The mean time between failures (MTBF) is the expected time between a repair and the next failure of a component. MTBF at this time in testing =_______hours

Reference no: EM13634055

Questions Cloud

Find a 99 confidence interval for the difference in the : a random sample of 83 investment portfolios managed by kendra showed that 62 of them met the targeted annual percent

How many grams of ethylene glycolc2h4oh2 are needed per : how many grams of ethylene glycolc2h4oh2 are needed per kilogramof water to protect radiator fluid against freezing

A minimum stress of -20 mpa compressive stress if a fatigue : for a specimen under fatigue test with a maximum stress of 150 mpa tensile stress and a minimum stress of -20 mpa

A galvanic cell consits of a cadmium cathode immersed in : a galvanic cell consits of a cadmium cathode immersed in acdso4 solution and a zinc anode immerse in aznso4 solution.

The mean time between failures mtbf is the expected time : a manufacturer of disk drives for notebook computers wants a mtbf of at least 50000 hours. recent test results for 15

A cylinder with a movable piston contains gas at a : a cylinder with a movable piston contains gas at a temperature of 27 degrees celsius a volume of 1.50m3 and an absolute

The generator at a power plant produces ac at 48000 v a : the generator at a power plant produces ac at 48000 v. a transformer step this up to 345000 v for transmission over

The mass spectrum of a hypothetical element shows that 8619 : the mass spectrum of a hypothetical element shows that 86.19 of the atoms have a mass of 27.977 u 0.825 have a mass of

What is the level of significance state the null and : the state fish and game division claims that 75 of the fish in homestead creek are rainbow trout. however the local

User Account

All Pages