The equation of the linear regression line is: ˆyy^ = ?+ x (Please show your answers to 3 decimal places) Use the model to predict the weight of a woman who spends 50 minutes on the phone. Weight = ? (Please round your answer to the nearest whole number.) Interpret the slope of the regression line in the context of the question: For every additional minute women spend on the phone, they tend to weigh on
The equation of the linear regression line is: ˆyy^ = ?+ x (Please show your answers to 3 decimal places) Use the model to predict the weight of a woman who spends 50 minutes on the phone. Weight = ? (Please round your answer to the nearest whole number.) Interpret the slope of the regression line in the context of the question: For every additional minute women spend on the phone, they tend to weigh on
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter3: Straight Lines And Linear Functions
Section3.CR: Chapter Review Exercises
Problem 15CR: Life Expectancy The following table shows the average life expectancy, in years, of a child born in...
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question 26
What is the relationship between the number of minutes per day a woman spends talking on the phone and the woman's weight? The time on the phone and weight for 8 women are shown in the table below.
Time | 54 | 88 | 82 | 61 | 39 | 40 | 84 | 83 |
---|---|---|---|---|---|---|---|---|
Pounds | 149 | 198 | 184 | 166 | 142 | 140 | 170 |
163 |
- The equation of the linear regression line is:
ˆyy^ = ?+ x (Please show your answers to 3 decimal places) - Use the model to predict the weight of a woman who spends 50 minutes on the phone.
Weight = ? (Please round your answer to the nearest whole number.) - Interpret the slope of the regression line in the context of the question:
- For every additional minute women spend on the phone, they tend to weigh on averge 0.87 additional pounds.
- As x goes up, y goes up.
- The slope has no practical meaning since you cannot predict a women's weight.
- Interpret the y-intercept in the context of the question:
- The y-intercept has no practical meaning for this study.
- The average woman's weight is predicted to be 106.
- The best prediction for the weight of a woman who does not spend any time talking on the phone is 106 pounds.
- If a woman does not spend any time talking on the phone, then that woman will weigh 106 pounds.
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