Question

the following sample observations were randomly selected x: 2 5 3 6 10 AND y: 4 2 5 7 7 the regression equation is y = (blank) + (blank) x when X is 8 this gives y = ??

Answer #1

The statistical software output for this problem is:

Hence,

Regression equation will be:

y = **2.9897** + **0.3866** x

For x = 8: y = **6.0825**

The following samples of observations were randomly
selected.
x:
5
3
6
3
4
4
6
8
y:
13
15
7
12
13
11
9
5
Determine the regression equation.
Determine the value of y when x is 7.

7- The following sample of observations were randomly
selected.
X
6
3
5
8 12
Y
4
8
6
10 14
Determine the correlation coefficient and interpret the
relationship between X and Y.
Find the Linear Regression equation.
Find the value of Y when X 11.
Please show calculations. Thank you.

The following sample observations were randomly selected.
(Round intermediate calculations and final answers to 2
decimal places.)
x
7
5
3
6
10
y
4
6
3
7
7
1. The regression equation is y= ___ + ____x
2. When X is 9 this gives y=____

The following sample observations were randomly selected.
(Round intermediate calculations and final answers to 2
decimal places.)
x
4
5
3
2
10
y
4
6
5
7
2
a
The regression equation is ŷ = __________ + __________
b
When X is 9 this gives ŷ =___________

The following sample observations were randomly selected.
(Round intermediate calculations and final answers to 2
decimal places.)
x
4
5
3
2
10
y
4
6
5
7
2
a.
The regression equation is ŷ =
+
x
b.
When X is 9 this gives ŷ =

The following sample observations were randomly selected.
(Round intermediate calculations and final answers to 2
decimal places.)
Regression equation is-
When X gives 6 this gives-
x
3
5
3
6
7
y
3
6
5
7
7

The following sample observations were randomly selected.
(Round intermediate calculations and final answers to 2
decimal places.)
x
4
5
3
4
10
y
4
6
4
7
7
QUESTION:
a.
The regression equation is ŷ =
+
x
b.
When X is 9 this gives ŷ
=

The following sample observations were randomly selected.
(Round intermediate calculations and final answers to 2
decimal places.)
x
3
5
3
6
7
y
3
6
5
7
7
A. The regression equation is Y= ____ + ____X
B When X is 6 this gives y=______

The following sample observations were randomly selected.
(Round intermediate calculations and final answers to 2
decimal places.)
x
4
5
3
7
10
y
4
3
5
7
7
a.The regression equation is ŷ =________+__________x
b.When X is 8 this gives ŷ =_________

The following sample observations were randomly selected.
x:
5
3
6
3
4
4
6
8
y:
13
15
7
12
13
11
9
5
Determine the 0.95 confidence interval for the mean predicted
when x = 7. (Round your answers to 4 decimal
places.)
Determine the 0.95 prediction interval for an individual
predicted when x = 7. (Round your answers to 4
decimal places.)

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