For each additional minute of stretching, the least squares regression line predicts she will be able to practice 5.301 minutes longer.
Interpret the least squares regression line of this data set.
Jen is a professional dancer booked for a major event. Although she has a rigorous practice schedule, she sometimes has to end a practice session when she begins to experience stiffness. She wonders if stretching more before starting a session will allow her to practice for a longer time.
Over the next few days Jen varies the number of minutes she stretches before the start of her session, x, and notes the number of minutes she can practice before experiencing stiffness, y. table: minutes spent stretching: 10.43; 11.52; 14.56; 19.06; 23.68; 25.05. minutes spent practicing: 188; 214; 295; 238; 294; 282. The correct least squares regression line for the data set is:
y=5.301x+159.689
Use it to complete the following sentence:
For each additional minute of stretching, the least squares regression line predicts she will be able to practice _ minutes longer.
1 answer