3. Five hundred and seventy-four randomly selected men were surveyed to determine whether there is an association between the age of the men and the size of their vehicle. The data was inputted into MINITAB for analysis to determine whether size of vehicle is independent of the age of the men. The following output, exhibit 1, was generated using MINTAB: Exhibit 1 Chi-Square Test for Association: Size of vehicle, Age Rows: Size of vehicle Columns: Age Under 30 30-39 Small 45 30.73 6.6246 23 36.29 4.8686 40-49 16 34.24 9.7197 50-59 32 60 and over All * 0.0801 52 ** 36.29 6.7981 Mid-size 37 38.41 0.0521 47 45.37 0.0589 54 42.80 2.9280 39 33 210 38.05 45.37 3.3707 Large 23 35.85 4.6081 54 42.34 3.2101 47 39.95 1.2436 33 35.51 0.1777 39 196 42.34 0.2637 All 105 124 117 104 124 574 Cell Contents: Count Chi-Square = Expected count Contribution to Chi-square 44.028, DF = ****, P-Value = 0.000 a) Carefully define the null and alternative hypotheses of the X² test underlying the generation of the above table. b) Fill in the missing values '*','**', ‘***' and ‘***** c) Using α = 5%, what is the conclusion of this test? Give reasons for your answer.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
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3. Five hundred and seventy-four randomly selected men were surveyed to determine
whether there is an association between the age of the men and the size of their vehicle.
The data was inputted into MINITAB for analysis to determine whether size of vehicle is
independent of the age of the men. The following output, exhibit 1, was generated using
MINTAB:
Exhibit 1
Chi-Square Test for Association: Size of vehicle, Age
Rows: Size of vehicle
Columns: Age
Under 30
30-39
Small
45
30.73
6.6246
23
36.29
4.8686
40-49
16
34.24
9.7197
50-59
32
60 and over All
*
0.0801
52 **
36.29
6.7981
Mid-size
37
38.41
0.0521
47
45.37
0.0589
54
42.80
2.9280
39
33 210
38.05
45.37
3.3707
Large
23
35.85
4.6081
54
42.34
3.2101
47
39.95
1.2436
33
35.51
0.1777
39 196
42.34
0.2637
All
105
124
117
104
124 574
Cell Contents:
Count
Chi-Square
=
Expected count
Contribution to Chi-square
44.028, DF = ****, P-Value = 0.000
a) Carefully define the null and alternative hypotheses of the X² test underlying the generation
of the above table.
b) Fill in the missing values '*','**', ‘***' and ‘*****
c) Using α = 5%, what is the conclusion of this test? Give reasons for your answer.
Transcribed Image Text:3. Five hundred and seventy-four randomly selected men were surveyed to determine whether there is an association between the age of the men and the size of their vehicle. The data was inputted into MINITAB for analysis to determine whether size of vehicle is independent of the age of the men. The following output, exhibit 1, was generated using MINTAB: Exhibit 1 Chi-Square Test for Association: Size of vehicle, Age Rows: Size of vehicle Columns: Age Under 30 30-39 Small 45 30.73 6.6246 23 36.29 4.8686 40-49 16 34.24 9.7197 50-59 32 60 and over All * 0.0801 52 ** 36.29 6.7981 Mid-size 37 38.41 0.0521 47 45.37 0.0589 54 42.80 2.9280 39 33 210 38.05 45.37 3.3707 Large 23 35.85 4.6081 54 42.34 3.2101 47 39.95 1.2436 33 35.51 0.1777 39 196 42.34 0.2637 All 105 124 117 104 124 574 Cell Contents: Count Chi-Square = Expected count Contribution to Chi-square 44.028, DF = ****, P-Value = 0.000 a) Carefully define the null and alternative hypotheses of the X² test underlying the generation of the above table. b) Fill in the missing values '*','**', ‘***' and ‘***** c) Using α = 5%, what is the conclusion of this test? Give reasons for your answer.
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