Question

Find regression line for the data

- X 0 1 2 3 4 5 6 7 8

Y 11 21 31 41 51 61 71 81 91

- X 0 2 4 6 8 10

Y 12 15 17 18 20 22

Answer #1

Please do the comment for any doubt. Thank you!

Using Excel<insert scatterplot<trendline<equation

Answer1:

x | y |

0 | 11 |

1 | 21 |

2 | 31 |

3 | 41 |

4 | 51 |

5 | 61 |

6 | 71 |

7 | 81 |

8 | 91 |

The regression line is: y=11+10x

Answer 2:

The given data is:

x | y |

0 | 12 |

2 | 15 |

4 | 17 |

6 | 18 |

8 | 20 |

10 | 22 |

The regression equation is:

y=0.943x+12.619

Find the Mean from the following group data.
Classes Frequency
11-21 18
21-31 20
31-41 25
41-51 30
51-61 46
61-71 48
71-81 35
81-91 27
91-101 24
101-111 10

6. Using the class data (see Blackboard file - "Class Survey
Data - PSS-10 and GAS") calculate the correlation between the GAS –
Goal disengagement and the GAS – Goal reengagement scores. Write
the results in a statistical statement.
7. Using the class data calculate the correlation between the
GAS – Goal disengagement and the PSS-10 scores. Write the results
in a statistical statement.
8. Using the class data calculate the correlation between the
GAS – Goal reengagement scores and...

Indices DUR DUR (OLD)
1 6 11
2 13 14
3 11 14
4 7 10
5 9 9
6 7 10
7 8 11
8 5 8
9 7 6
10 7 10
11 7 13
12 3 5
13 10 13
14 3 15
15 4 12
16 9 7
17 9 8
18 10 13
19 6 10
20 8 14
21 10 14
22 8 18
23 2 10
24 4 11
25 7 16
26 ...

By
looking at the given x, y data pairs, determine if either ratio
estimation, regression estimation, difference estimation, or all of
them can be used in estimating the y variable population total.
Remember to look at the requirements for using each of these
techniques and justify your answers based on these
requirements.
Sample
x
y
1
12
60
2
16
87
3
18
91
4
10
50
5
17
94
6
11
62
7
14
67
8
13
64
9...

Consider a TSP case with 9 cities to be visited (starting from D
and returning to D). Using the distance matrix is provided below,
use the nearest neighborhood heuristic to find the minimum distance
route.
Distances
D
1
2
3
4
5
6
7
8
D
0
61
42
22
50
45
32
57
30
1
61
0
21
62
80
91
32
76
82
2
42
21
0
41
61
71
20
71
67
3
22
62
41
0...

Consider the data:
X - 1 3 5 7
9 11 13 15
Y - 6 14 2 20 10 18 26 22
(c) Obtain the equation of the regression line for these data

This dataset contains consumer responses indicating the number
of times they had to send their product for repair and their
satisfaction with the repair process. Create a graph which can be
used to visually demonstrate the relationship between the two
columns of data. Ensure that the chart is professional with
appropriate titles, axis labels, etc. Note any observations you see
in your visualization (type these as sentences directly into an
Excel cell(s)).
Sample
Satisfaction Rating
Repair Requests
1
63%
13...

61. The following data
is to be used to construct a regression model:
x
5
7
4
15
12
9
y
8
9
10
22
16
12
The value of SSR is
____________.
124.986
121.116
118.182
112.157
110.136

Chem 576: Crossword 3 1
2 3 4
5 6
7 8 9
10
11
12
13 14
15 16
17 18
19 20
21
22
23 24
25 26
27
28
29
Across
2. Hydrogen cyanide is prepared from ammonia
and methane is this process.
6. Metal used to catalyse the conversion of
ammonia to NO.
7. Phosphoric acid is prepared by the action of
sulfuric acid on ________.
10. Dinitrogen __________ is a blue liquid and
decomposes readily...

Bag
Blue
Orange
Green
Yellow
Red
Brown
Total Number of Candies
1
7
23
9
11
4
6
60
2
16
16
4
7
9
4
56
3
14
14
3
10
5
11
57
4
13
14
7
8
8
6
56
5
18
12
7
10
5
7
59
6
12
9
11
9
8
8
57
7
15
16
6
6
6
8
57
8
15
17
8
4
6
7
57
9
12
14
10
5...

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