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The results of a survey made to determine whether the age of a driver 21 years of age and older has any effect on the
The results of a survey made to determine whether the age of a driver 21 years of age and older has any effect on the number of automobile accidents in which he is involved are shown in Table 15.2.
Table 15.2
A G E of D R I V E R | ||||||
21-30 | 31-40 | 41-50 | 51-60 | 61-70 | ||
NUMBER | 0 | 748 | 821 | 789 | 720 | 672 |
of | 1 | 74 | 60 | 51 | 66 | 50 |
ACCIDENTS | 2 | 31 | 25 | 22 | 16 | 15 |
>2 | 9 | 10 | 6 | 5 | 7 |
1. The Chi-square tabular at 0.95 level of significance. (to the nearest thousandths)
2. At significance level of 0.99, test the null hypothesis. The decision__________.
A. The 2 variables are not dependent.
B. Accept Ho.
C. Reject Ha.
D. Reject Ho.
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