(a) Obtain a scatter diagram of the data. (h) Construct a line that approximates the data. (c) Find the equation of the line constructed in part (h). fett Estimate the-weight of u student whose height-is known to be 63 in.
(a) Obtain a scatter diagram of the data. (h) Construct a line that approximates the data. (c) Find the equation of the line constructed in part (h). fett Estimate the-weight of u student whose height-is known to be 63 in.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 19PFA
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Transcribed Image Text:1. The table below shows the data from the computer sales since 1960 to 1969.
(a) Obtain a scatter diagram of the data.
COST(X) SALES(Y)
YEAR
(h) Construct a line that approximates the data.
(c) Find the equation of the line constructed in part (h).
fA Estimate the-weight of u student-whose heightis known to be 63 in.
te Estimate the height of a student whase weight-is known-to be 168 15.
Test the significance of regression coefficient b at 1% level of significance
1960
15
38
1961
30
53
1962
16
бо
1963
39
72
1964
20
40
1965
36
47
1966
45
82
1967
10
21
1968
13
25
1969
16
40
2 Fit an equation of the forms Z = an + ajX + azY
To the given data
( yrs
No. Experience Test Score Salary
No Experience Test Score Salary
11
1
4
78
24
88
38
2
7
100
43
12
73
26.6
3
1
86
23.7
13
10
75
36.2
4
82
34.3
14
81
31.6
8
86
35.8
15
74
29
10
84
38
16
8
87
34
7
75
22.2
17
4
79
30.1
8
1
80
23.1
18
94
33.9
9.
6.
83
30
19
70
28.2
10
91
33
20
89
30
O 3 3
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