The accompanying data table contains chest deceleration measurements (in g. where g is the force of gravity) from samples of small, midsize, and large cars. Shown are the technology results for analysis of variance of this data table. Assume that a researcher plans to use a 0.05 significance level to test the claim that the different size categories have the same mean chest deceleration in the standard crash test. Complete parts (a) and (b) below. 9 Click the icon to view the table of chest deceleration measurements E Click the icon to view the table of analysis of variance results. a. What characteristic of the data specifically indicates that one-way analysis of variance should be used? OA. The population means are approximately nomal. OB. There are three samples of measurements. OC. The measurements are categorized according to the one characteristic of size. OD. Nothing specifically indicates that one-way analysis of variance should be used. b. If the objective is to test the claim that the three size categories have the same mean chest deceleration, why is the method referred to as analysis of variance? OA The method is based on showing that the population variances are similar. OB. The method is based on estimates of multiple varying population variances. OC. The method is based on showing that the population variances are different. OD. The method is based on estimates of a common population variance

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Chest Deceleration Measurements (g) from a Standard Crash Test

Small
44
39
37
54
39
44
42
Midsize
36
53
43
42
52
49
41
Large
32
45
41
38
37
38
33
SPSS Results
Sum of Squares
df
Mean Square
F
Sig.
Between Groups
200.857
2
100.429
3.288
0.061
Within Groups
549.714
18
30.540
 
 
Total
750.571
20
 
 
 
The accompanying data table contains chest deceleration measurements (in g. where g is the force of gravity) from samples of small, midsize, and large cars. Shown are the technology results for analysis of variance of this data table. Assume that a researcher plans to use a 0.05 significance
level to test the claim that the different size categories have the same mean chest deceleration in the standard crash test. Complete parts (a) and (b) below.
9 Click the icon to view the table of chest deceleration measurements
E Click the icon to view the table of analysis of variance results.
a. What characteristic of the data specifically indicates that one-way analysis of variance should be used?
OA. The population means are approximately nomal.
OB. There are three samples of measurements.
OC. The measurements are categorized according to the one characteristic of size.
OD. Nothing specifically indicates that one-way analysis of variance should be used.
b. If the objective is to test the claim that the three size categories have the same mean chest deceleration, why is the method referred to as analysis of variance?
OA The method is based on showing that the population variances are similar.
OB. The method is based on estimates of multiple varying population variances.
OC. The method is based on showing that the population variances are different.
OD. The method is based on estimates of a common population variance
Transcribed Image Text:The accompanying data table contains chest deceleration measurements (in g. where g is the force of gravity) from samples of small, midsize, and large cars. Shown are the technology results for analysis of variance of this data table. Assume that a researcher plans to use a 0.05 significance level to test the claim that the different size categories have the same mean chest deceleration in the standard crash test. Complete parts (a) and (b) below. 9 Click the icon to view the table of chest deceleration measurements E Click the icon to view the table of analysis of variance results. a. What characteristic of the data specifically indicates that one-way analysis of variance should be used? OA. The population means are approximately nomal. OB. There are three samples of measurements. OC. The measurements are categorized according to the one characteristic of size. OD. Nothing specifically indicates that one-way analysis of variance should be used. b. If the objective is to test the claim that the three size categories have the same mean chest deceleration, why is the method referred to as analysis of variance? OA The method is based on showing that the population variances are similar. OB. The method is based on estimates of multiple varying population variances. OC. The method is based on showing that the population variances are different. OD. The method is based on estimates of a common population variance
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