answer letter c using least square method

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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answer letter c using least square method 

Temperature
Rating (F®)
Model
Price ($)
Ranger 3-Seasons
Ranger Spring
Ranger Winter
Rondane 3-Seasons
Rondane Summer
Rondane Winter
Senja Ice
Senja Snow
Senja Zero
Super Light
Tight & Light
12
24
3
13
38
4
5
15
25
45
25
319
289
389
239
149
289
359
259
229
129
199
a. Develop a scatter diagram for these data with temperature rating (F") as the indepen-
dent variable.
b. What does the scatter diagram developed in part (a) indicate about the relationship
between temperature rating (F®) and price?
c. Use the least squares method to develop the estimated regression equation.
d. Predict the price for a sleeping bag with a temperature rating (F") of 20.
Transcribed Image Text:Temperature Rating (F®) Model Price ($) Ranger 3-Seasons Ranger Spring Ranger Winter Rondane 3-Seasons Rondane Summer Rondane Winter Senja Ice Senja Snow Senja Zero Super Light Tight & Light 12 24 3 13 38 4 5 15 25 45 25 319 289 389 239 149 289 359 259 229 129 199 a. Develop a scatter diagram for these data with temperature rating (F") as the indepen- dent variable. b. What does the scatter diagram developed in part (a) indicate about the relationship between temperature rating (F®) and price? c. Use the least squares method to develop the estimated regression equation. d. Predict the price for a sleeping bag with a temperature rating (F") of 20.
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