Question

Compute the least-squares regression equation for the given data set. Round the slope and y -intercept to at least four decimal places. x 5 4 2 6 3 y 4 5 1 3 6 Send data to Excel Regression line equation: = y

Answer #1

We can use here Excel for regression equation

Step 1) Enter data in Excel .

Step 2) Data >>Data analysis >>Regression
>>Select y and x values separately >>Ok

Therefore, linear regression equation is,

y=0.2x + 3

compute the least-squares regression equation for the
given data set. Round the slope and
y
-intercept to at least four decimal places.
x
7
4
5
2
1
y
2
6
5
1
7
Regression line equation: y=

Compute the least-squares regression equation for the
given data set. Round the slope and
y
-intercept to at least four decimal places.
x
6
1
4
7
3
y
2
4
1
7
6
Regression line equation: y=?

Compute the least-squares regression equation for the given data
set. Use a TI- 84 calculator. Round the slope and y -intercept to
at least four decimal places.
x 5 7 6 2 1
y 4 3 2 5 1
Regression line equation: y=

Compute the least-squares regression equation for the given data
set. Use a TI-84
calculator. Round the slope and y-intercept to at least four
decimal places.
x
10
6
8
14
−7
−1
7
−9
y
3
1
30
31
0
3
−3
−15
Send data
to Excel
Regression line equation:
=y
the data is the numbers connected to the x and y lines
for x the numbers are 10, 6, 8, 14, -7, -1, 7, -9
for y the numbers...

Find the slope of the equation of the least-squares regression
line for the following data set.
x
y
59
-119
24
-35
50
-107
47
-73
41
-78
72
-117
40
-55
Round your answer to two decimal places.

For the data set below,
(a) Determine the least-squares regression line.
(b) Compute the sum of the squared residuals for the least-squares
regression line.
x 20 30 40 50 60
___________________
y 106 95 82 70 54
(a) Determine the least-squares regression line.
^
y =[]x +[] ( round to four decimal places as needed.)

Calculate the y-intercept of the least-squares regression line
for the following data set.
x
y
59
-119
24
-35
50
-107
47
-73
41
-78
72
-117
40
-55
Round your answer to two decimal places.

Find the y-intercept of the regression line for the following
data set. Round your answers to 3 decimal places.
X
Y
2
2
4
7
8
25
10
26
13
38
16
50

Compute the least squares regression line for the data in
Exercise 4 of Chapter 10, Section 2 “The Linear Correlation
Coefficient”. data: x 1 2 4 7 9 y 5 5 6 - 3 0

1)
Given the following information, what is the least squares
estimate of the y-intercept?
x
y
2
50
5
70
4
75
3
80
6
94
a)3.8 b)5 c) 7.8 d) 42.6
2) A least squares regression line
a) can only be determined if a good linear relationship exists
between x and y.
b) ensures that the predictions of y outside the range
of the values of x are valid.
c) implies a cause-and-effect relationship between x
and y.
d)...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 14 minutes ago

asked 21 minutes ago

asked 21 minutes ago

asked 44 minutes ago

asked 53 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago