Artificial Hip Joints Consist of a Ball and Socket $\alpha = 0.05$

question 24

Short Answer

Artificial hip joints consist of a ball and socket. As the joint wears, the ball (head) becomes rough.
Investigators performed wear tests on metal, artificial hip joints. Joints with several different diameters were tested. The following table presents measurements of head roughness (in nanometers). i). Construct an ANOVA table.
ii). Can you conclude that the mean roughness varies with diameter? Use the $\alpha = 0.05$ level of significance.

---

Definitions:

Social Facilitation

The enhancement or improvement of individual performance when in the presence of others or being watched, due to increased arousal and motivation.

Grit

A trait involving perseverance and passion for long-term goals, characterized by sustained interest and effort over time.

Deep Attachments

Strong and long-lasting emotional bonds that form between individuals, often resulting in a deep sense of connection and security.

Foster Homes

Residential settings where children are placed under the care of a foster family by legal arrangement, typically as a temporary or long-term care solution for children unable to live with their biological families.