The article “The Lubrication of Metal-on-Metal Total Hip Joints: A Slide Down the Stribeck Curve” (S. Smith, D. Dowson, and A. Goldsmith, Proceedings of the Institution of Mechanical Engineers, 2001:483-493) presents results from wear tests done on metal artificial hip joints. Joints with several different diameters were tested. The data presented in the following table on head roughness are consistent with the means and standard deviations reported in the article.
a. Construct an ANOVA table. You may give a range for the P-value.
b. Can you conclude that mean roughness varies with diameter? Explain.
Chapter 8 Part 8.5 Selected Synovial Joints Synovial joints are diverse All have general features, but some also have unique structural features, abilities, and weaknesses Five main synovial joints Knee Shoulder Elbow Hip Jaw Knee Joint Largest, most complex joint of body Consists of three joints surrounded by single cavity 1 Femoropatellar joint Plane joint Allows gliding motion during knee flexion 2 Lateral joint and 3. Medial joint Lateral and medial joints together are called tibiofemoral joint Joint between femoral condyles and lateral and medial menisci of tibia Hinge joint that allows flexion, extension, and some rotation when knee partly flexed Knee Joint (cont.) Joint capsule is thin and absent anteriorly Anteriorly, quadriceps tendon gi