Answered: Find the equation of the regression…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Calories, x	150	170	130	130	80	180		(a) x=160 calories	(b) x=90 calories
Sodium, y	415	465	350	370	260	520		(c) x=120 calories	(d) x=50 calories

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Part 1

Find the regression equation.

y=enter your response herex+(enter your response here)

(Round to three decimal places as needed.)

Part 2

Choose the correct graph below.

02000560CaloriesSodium (mg)

A scatterplot has a horizontal axis labeled "Calories" from 0 to 200 in increments of 20 and a vertical axis labeled "Sodium (in milligrams)" from 0 to 560 in increments of 40. The following points are plotted: 90 units to the right of and 285 units above the origin; 90 units to the right of and 310 units above the origin; 140 units to the right of and 400 units above the origin; 140 units to the right of and 420 units above the origin; 170 units to the right of and 470 units above the origin; 90 units to the right of and 310 units above the origin. A line rises from left to right and passes through the points (50, 176) and (100, 302). All coordinates are approximate.

02000560CaloriesSodium (mg)

A scatterplot has a horizontal axis labeled "Calories" from 0 to 200 in increments of 20 and a vertical axis labeled "Sodium (in milligrams)" from 0 to 560 in increments of 40. The following points are plotted: 10 units to the right of and 250 units above the origin; 30 units to the right of and 110 units above the origin; 30 units to the right of and 315 units above the origin; 30 units to the right of and 265 units above the origin; 60 units to the right of and 160 units above the origin; 60 units to the right of and 220 units above the origin. A line falls from left to right and passes through the points (0, 194) and (77, 0). All coordinates are approximate.

02000560CaloriesSodium (mg)

A scatterplot has a horizontal axis labeled "Calories" from 0 to 200 in increments of 20 and a vertical axis labeled "Sodium (in milligrams)" from 0 to 560 in increments of 40. The following points are plotted: 60 units to the right of and 160 units above the origin; 110 units to the right of and 80 units above the origin; 110 units to the right of and 270 units above the origin; 120 units to the right of and 315 units above the origin; 130 units to the right of and 365 units above the origin; 140 units to the right of and 420 units above the origin. A line falls from left to right and passes through the points (0, 394) and (157, 0). All coordinates are approximate.

02000560CaloriesSodium (mg)

A scatterplot has a horizontal axis labeled "Calories" from 0 to 200 in increments of 20 and a vertical axis labeled "Sodium (in milligrams)" from 0 to 560 in increments of 40. The following points are plotted: 80 units to the right of and 260 units above the origin; 130 units to the right of and 350 units above the origin; 130 units to the right of and 370 units above the origin; 150 units to the right of and 415 units above the origin; 170 units to the right of and 465 units above the origin; 180 units to the right of and 520 units above the origin. A line rises from left to right and passes through the points (50, 170) and (100, 296). All coordinates are approximate.