Suppose You Fit a Least Squares Line to 23 Data $0.495$

question 25

Essay

Suppose you fit a least squares line to 23 data points and the calculated value of SSE is $0.495$ .
a. Find $s ^ { 2 }$ , the estimator of $\sigma ^ { 2 }$ .
b. What is the largest deviation you might expect between any one of the 23 points and the least squares line?

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Definitions:

Medical Assistant

A healthcare professional who supports doctors and nurses by performing administrative and clinical tasks.

Radiology

A medical discipline that uses imaging technologies such as X-rays, CT scans, MRI, and ultrasound to diagnose and sometimes treat diseases.

Radioactive Substances

Materials that emit radiation, which is energy in the form of particles or waves, as a result of the decay of atomic nuclei.

X-rays

A form of electromagnetic radiation that can pass through most objects, including the body, used mainly for diagnostic imaging in medicine.