If you appreciate our work, consider supporting us:

QUESTION:

Suppose a sleep apnea company wanted to predict the maximum number of hours of sleep needed for those aged 18 and older, how would we make this prediction? Let’s assume the slope of the line is b = -3. The most commonly used criterion to select a line of prediction is called the  criterion. This criterion says: Among all the lines that look  on your data, choose the one that has the  sum of squared vertical deviations. The -3 slope value means that for each additional year in age, the maximum hours of sleep needed  on average by three hours.

ANSWER:

Suppose a sleep apnea company wanted to predict the maximum number of hours of sleep needed for those aged 18 and older, how would we make this prediction? Let’s assume the slope of the line is b = -3. The most commonly used criterion to select a line of prediction is called the 

least squares

 criterion. This criterion says: Among all the lines that look 

good

 on your data, choose the one that has the 

smallest

 sum of squared vertical deviations. The -3 slope value means that for each additional year in age, the maximum hours of sleep needed 

decreases

 on average by three hours.

Back to Questions