Question
In: Statistics and Probability
For the X,Y data below, compute:
For the X,Y data below, compute:
| X | Y |
|---|---|
|
2 |
5 |
| 4 | 6 |
| 4 | 7 |
| 5 | 11 |
| 6 | 12 |
(a) the correlation coefficient and determine if it is significantly different from zero.
(b) find the regression line.
c) interpret the coefficient of the regression line
d) at 5% test if the Y is related to X
e) find the coefficient of determination and interpret this coefficient.
f) predict the value of average Y if the average of X is13
g) at 1% find the confidence interval and the prediction interval of the true value of average and the value of Y.
Solutions
orchestra answered 2 years agoRelated Solutions
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PLEASE USE PYTHON CODE
Compute the zero of the function y(x) from the following
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The two data sets in the table below are dependent random samples. The population of (x−y)(x-y)...
The two data sets in the table below are dependent random
samples. The population of (x−y)(x-y) differences is approximately
normally distributed. A claim is made that the mean difference
(x−y)(x-y) is not equal to -23.5.
x
60
62
46
45
37
45
46
46
y
79
77
75
86
83
71
76
77
For each part below, enter only a numeric value
in the answer box. For example, do not type "z =" or
"t =" before your answers. Round...
The two data sets in the table below are dependent random samples. The population of (x−y)(x-y)...
The two data sets in the table below are dependent random
samples. The population of (x−y)(x-y) differences is approximately
normally distributed. A claim is made that the mean difference
(x−y)(x-y) is greater than 17.9.
x
67
79
68
52
56
78
78
78
y
30
50
32
49
31
51
37
35
For each part below, enter only a numeric value
in the answer box. For example, do not type "z =" or
"t =" before your answers. Round each...
for the quantitative variables x and y are given in the table below. These data are...
for the quantitative variables
x
and
y
are given in the table below. These data are plotted in the
scatter plot shown next to the table.
In the scatter plot, sketch an approximation of the
least-squares regression line for the data.
x
y
7.4
6.6
4.0
5.0
2.0
3.9
3.1
5.0
9.4
8.4
4.7
5.9
6.6
6.2
8.5
6.9
7.9
7.3
1.6
3.7
4.4
4.6
2.8
3.9
2.7
3.1
5.7
6.3
5.9
7.3
9.7
8.3
6.9
6.3
8.8
8.4
x...
Consider the following data on x and y shown in the table below, x 2 4...
Consider the following data on x and y shown in the table
below,
x
2
4
7
10
12
15
18
20
21
25
y
5
10
12
22
25
27
39
50
47
65
Fit the model E(y)=β0+β1x to the data, and plot
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Compute the area under y = √x between x = a and x = b where...
Compute the area under y = √x between x = a and x = b where a
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Allow the user a total of three chances to enter valid input for
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in...
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the point (2, 0, 0) and ending at the point (0, 2, 0) with the
counterclockwise orientation.
For the differential equation (2 -x^4)y" + (2*x -4)y' + (2*x^2)y=0. Compute the recursion formula for...
For
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Compute the recursion formula for the coefficients of the power
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Add each of the following (X, Y) score pairs to the data in the table below....
Add each of the following (X, Y) score pairs to the data in the
table below. (Add only the single data point in each part of this
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each part, sketch a scatterplot of the data with the additional
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The data below represent the number of days absent, x, and the final grade, y, for...
The data below represent the number of days absent, x, and the
final grade, y, for a sample of college students at a large
university. Complete parts (a) through (e) below.
Number of absences, x
Final grade, y
0
88.5
1
85.6
2
82.5
3
79.9
4
76.9
5
72.4
6
62.6
7
67.1
8
64.1
9
61.1
(a) Find the least-squares regression line treating the number
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