The article "the load-life relationship for m50 bearings with silicon nitride ceramic balls" (lubrication engr., 1984: 153–159) reports the accompanying data on bearing load life (million revs.) for bearings tested at a kn load. 47.1 68.1 68.1 90.8 103.6 106.0 115.0 126.0 146.6 229.0 240.0 240.0 278.0 278.0 289.0 289.0 367.0 385.9 392.0 505.0 construct a normal probability plot. is normality plausible? construct a weibull probability plot. is the weibull distribution family plausible?

What are different types of statistical programs

52 cm radius = diameter = area = circumference = circumfer

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?