Before conducting inference for regression slope we need to check several assumptions by looking at the residuals. Which of these is important?I. The residual plot should not have observable patterns. II. The residuals should have a fairly consistent vertical spread. III. The distribution of residuals should be approximately normal

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.