Number of Kilowatt-Hours Number of Kilowatt-Hours Rooms (thousands) Rooms (thousands) 12 9 8 6 9 7 10 8 14 10 10 10 6 5 5 4 10 8 7 7 a. Determine the regression equation. b. Determine the number of kilowatt-hours, in thousands, for a six-room house.
Added by Vanesa G.
Close
Step 1
To calculate the mean, add up all the values and divide by the total number of values. Number of Rooms: (12 + 9 + 14 + 6 + 10) / 5 = 51 / 5 = 10.2 Kilowatt-Hours: (9 + 7 + 10 + 5 + 8) / 5 = 39 / 5 = 7.8 Show more…
Show all steps
Your feedback will help us improve your experience
Sheryl Ezze and 85 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Bradford Electric Illuminating Company is studying the relationship between kilowatt-hours (thousands) used and the number of rooms in a private single-family residence. A random sample of 10 homes yielded the following. $$ \begin{array}{|rc|cc|} \hline \begin{array}{c} \text { Number of } \\ \text { Rooms } \end{array} & \begin{array}{c} \text { Kilowatt-Hours } \\ \text { (thousands) } \end{array} & \begin{array}{c} \text { Number of } \\ \text { Rooms } \end{array} & \begin{array}{c} \text { Kilowatt-Hours } \\ \text { (thousands) } \end{array} \\ \hline 12 & 9 & 8 & 6 \\ 9 & 7 & 10 & 8 \\ 14 & 10 & 10 & 10 \\ 6 & 5 & 5 & 4 \\ 10 & 8 & 7 & 7 \\ \hline \end{array} $$ a. Determine the regression equation. b. Determine the number of kilowatt-hours, in thousands, for a six-room house.
The Bradford Electric Illuminating Company is studying the relationship between kilowatt hours (thousands) used and the number of rooms in a private single-family residence. A random sample of 10 homes yielded the following. Number of rooms Kilowatt-Hours (thousands) 12 9 9 7 14 10 6 5 10 8 8 6 10 8 10 10 5 4 7 7 a. Determine the regression equation. b. Interpret the values of a and b. c. Determine the number of kilowatt-hours, in thousands, for a six-room house.
Ramesh R.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD