Answered

Welcome to Westonci.ca, where finding answers to your questions is made simple by our community of experts. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

A nutritionist is curious about how the concentration of a vitamin supplement changes as a function of time (in hours) since a pill has been swallowed. The nutritionist measures the concentration for six hours after the pill was swallowed. He calculates the equation of the least-squares regression line as ŷ = 0.0093 – 0.00121x where ŷ is the concentration and x is the number of hours since the pill was swallowed. The graph shown is the residual plot for this model where the residuals are measured in parts per thousand.

Based on the residual plot, is the linear model appropriate?

No, there is no clear pattern in the residual plot.

Yes, there is no clear pattern in the residual plot.

No, there is a clear pattern in the residual plot, indicating that the linear model is not appropriate.

Yes, clearly the concentration of the vitamin decreases for the first three hours and then increases after that.

Sagot :

Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. Thanks for using our platform. We aim to provide accurate and up-to-date answers to all your queries. Come back soon. Thank you for visiting Westonci.ca. Stay informed by coming back for more detailed answers.