Question
In: Statistics and Probability
Find regression line for the data X 0 1 2 3 4 5 6 7 8  
Find regression line for the data
- X 0 1 2 3 4 5 6 7 8 [3 MARKS]
Y 11 21 31 41 51 61 71 81 91
b. X 0 2 4 6 8 10 [3 MARKS]
Y 12 15 17 18 20 22
Solutions
orchestra answered 1 year agoRelated Solutions
DATA 3 8 2 15 2 2 0 0 4 5 2 7 0 1 5...
DATA
3
8
2
15
2
2
0
0
4
5
2
7
0
1
5
3
0
2
5
4
1
6
9
5
3
1
2
10
6
1
1
2
1
19
6
6
6
7
0
4
1
1
1
0
1
9
2
2
2
1
16
10
10
5
2
3
1
4
4
4
3
6
2
8
5
2
7
1
6
4
0
3
1
1
1
Background:
A group of...
x (Bins) frequency 0 0 1 0 2 0 3 2 4 5 5 8 6...
x (Bins)
frequency
0
0
1
0
2
0
3
2
4
5
5
8
6
13
7
33
8
42
9
66
10
77
11
105
12
103
13
110
14
105
15
84
16
70
17
51
18
40
19
27
20
27
21
15
22
5
23
7
24
2
25
2
26
1
27
0
28
0
29
0
30
0
(7) On the Histogram worksheet, calculate all
frequencies of the distribution using the table shown....
x 2 8 5 9 4 3 9 6 7 8 y 3 6 5 7...
x 2 8 5 9 4 3 9 6 7 8
y 3 6 5 7 9 7 4 6 9 9
-5.48x + 0.17
5.48x + 0.17
-0.17x + 5.48
0.17x + 5.48
A = （1 −7 5 0 0 10 8 2 2 4 10 3 −4 8...
A =
（1 −7 5 0
0 10 8 2
2 4 10 3
−4 8 −9 6）
(1) Count the number of rows that contain negative
components.
(2) Obtain the inverse of A and count the number of columns that
contain even number of positive components.
(3) Assign column names (a,b,c,d) to the columns of A.
(4) Transform the matrix A into a vector object a by stacking
rows.
(5) Replace the diagonal components of A with (0,0,2,3). Hint:...
Given: x y -5 1 -4 5 -3 4 -2 7 -1 10 0 8 1...
Given:
x
y
-5
1
-4
5
-3
4
-2
7
-1
10
0
8
1
9
2
13
3
14
4
13
5
18
What are the confidence limits (alpha = 0.05) for the true mean
value of Y when X = 3?
Step 2 Data Set A x 1 2 3 4 5 6 7 y 7 7...
Step 2
Data Set A
x
1
2
3
4
5
6
7
y
7
7
7
9
9
9
10
Data Set B
x
1
2
3
4
5
6
7
8
9
10
11
y
4
6
6
6
8
9
9
9
10
10
10
Step 2
Find the equation for the least-squares line, and graph the
line on the scatter plot.
Find the sample correlation coefficient r and the
coefficient of determination r2. Is r
significant?...
x 3, 4, 5, 7, 8 y 3, 7, 6, 13, 14 (a) Find the estimates...
x 3, 4, 5, 7, 8 y 3, 7, 6, 13, 14 (a) Find the estimates of Bo
and B1. Bo=bo= _____ (Round to three decimal places as needed.)
B1=b1= ______(Round to four decimal places as needed.)
(b) Compute the standard error the point estimate for se=
____
(c) Assuming the residuals are normally distributed, determine
Sb1=____ (Round to four decimal places as needed.)
(d) Assuming the residuals are normally distributed, test HoB1=0
versus H1:B1/=0 at the a=0.05 level of...
Input Data Month 0 1 2 3 4 5 6 7 8 9 10 11 12...
Input Data
Month
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Revenue
$
-
$
-
$
-
$ -
$ -
$
-
$ 2,500
$ 2,875
$ 3,306
$ 3,802
$ 4,373
$ 5,028
$ 5,783
$ 6,650
$ 7,648
$ 8,795
$ 10,114
$ 11,631
$ 13,376
$ 15,382
$ 17,689
$ 20,343
$ 23,394
$ 26,903
Monthly Revenue Growth...
Input Data Month 0 1 2 3 4 5 6 7 8 9 10 11 12...
Input Data
Month
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Revenue
$
-
$
-
$
-
$ -
$ -
$
-
$ 2,500
$ 2,875
$ 3,306
$ 3,802
$ 4,373
$ 5,028
$ 5,783
$ 6,650
$ 7,648
$ 8,795
$ 10,114
$ 11,631
$ 13,376
$ 15,382
$ 17,689
$ 20,343
$ 23,394
$ 26,903
Monthly Revenue Growth...
ID X Y 1 2 3 2 3 6 3 4 6 4 5 7 5...
ID
X
Y
1
2
3
2
3
6
3
4
6
4
5
7
5
8
7
6
5
7
7
6
7
8
8
8
9
7
8
10
12
11
Test the significance of the correlation coefficient.
Then use math test scores (X) to predict physics test scores
(Y). Do the following:
Create a scatterplot of X and Y.
Write the regression equation and interpret the regression
coefficients (i.e., intercept and slope).
Predict the physics score for each....
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