Answer:
73%
Step-by-step explanation:
73%
A company specializes in custom home resales in an exclusive subdivision. A random sample of nine custom homes currently listed
for sale provided the following information on size and price. Here, x denotes size, in hundreds of square feet, rounded to the nearest hundred, and y denotes price, in thousands of dollars, rounded to the nearest thousand. Use the information to complete parts (a) through (g). x 26 27 33 29 29 34 30 40 22
y 540 555 575 577 606 661 738 804 496
a. Find the regression equation for the data points.
b. Graph the regression equation and the data points.
c. Describe the apparent relationship between the two variables under consideration.
d. Interpret the slope of the regression line.
e. Identify the predictor and response variables.
f. Identify outliners and potential influential observations.
g. Predict the values of the response variable for the specified values of the predictor variable, and interpret your results.
y 540 555 575 577 606 661 738 804 496
a. Find the regression equation for the data points.
b. Graph the regression equation and the data points.
c. Describe the apparent relationship between the two variables under consideration.
d. Interpret the slope of the regression line.
e. Identify the predictor and response variables.
f. Identify outliners and potential influential observations.
g. Predict the values of the response variable for the specified values of the predictor variable, and interpret your results.
1 answer:
Answer:
Step-by-step explanation:
Given data of x and y are tabulated and slope and intercept found out
X Y
26 540
27 555
33 575
29 577
29 606
34 661
30 738
40 804
22 496
SLOPE 15.89351852
Intercept 140.0833333
a) Regression equation is
y =15.89x+140.08
b) Enclosed
c) POsitive linear relation
d) When x increses by 1 unit y increases by 15.89 units
e) predictor is x and response is y
f) No outliers.Potential are
26 540
27 555
33 575
29 577
g) whenever we have x value we substitute in regression equation and find y
g)
You might be interested in
Answer:
a. y = -1/2x - 2
Step-by-step explanation:
The correct answer choice can be determined by finding the slope of the line. The slope is the ratio of rise to run.
__
<h3>slope</h3>The x-intercept is 4 units left of the y-axis. As the line "runs" those 4 units, it "rises" -2 units to intercept the y-axis at -2. The slope of the line is ...
m = rise/run = -2/4 = -1/2
In the slope-intercept form of the equation of a line, the slope is the coefficient of x. This information is sufficient to let us choose the first answer choice.
__
<h3>equation</h3>The slope-intercept equation is ...
y = mx +b . . . . . . . slope m, y-intercept b
We know the slope is -1/2, and the y-intercept is where x=0, at y=-2. Then the equation is ...
y = -1/2x -2 . . . . . matches choice A
_____
<em>Additional comment</em>
When answering multiple-choice questions, you only need to do enough work to tell which answers are <em>not</em> viable.
When we plot the points, we see that the line has negative slope. (eliminates choice C). The slope is shallow, rather than steep (the x-intercept is farther from the origin than the y-intercept), so the magnitude of the slope is less than 1 and choices B and D are eliminated.
