An Experiment Was Performed on a Certain Metal to Determine

question 82

Short Answer

An experiment was performed on a certain metal to determine if the strength is a function of heating time. Results based on 10 metal sheets are given below.
∑X = 30
∑X² = 104
∑Y = 40
∑Y² = 178
∑XY = 134
Using the simple linear regression model, find the estimated y-intercept.

---

Definitions:

Mental Health

A level of psychological well-being, or an absence of mental illness.

Physical Health

The overall condition of an individual's body, including the absence of disease and the state of physical fitness.

Negative Reinforcement

The strengthening of a response (increases in frequency) because it is followed by the removal of a (presumably) unpleasant stimulus.

Control of Antecedents

The management or manipulation of factors that precede and potentially trigger certain behaviors or reactions, used as a strategy in behavior modification.