Each day\'s proportion of one week\'s total truck traffic is shown in the table

Question

Each day's proportion of one week's total truck traffic is shown in the table to the right. During the same week, the number of overweight trucks per day is given in the second column. Determine whether the number of overweight trucks per week is distributed over the seven days of the week in direct proportion to the volume of truck traffic. Test using =0.1

Now find the test statistic.

Use technology to find the p-value

Proportion Number Monday 0.192 95 Tuesday 0.195 90 Wednesday 0.184 80 Thursday 0.182 73 Friday 0.156 52 Saturday 0.043 17 Sunday 0.048 37

Explanation / Answer

The statistical software output for this problem is:

Chi-Square goodness-of-fit results:
Observed: Oi
Expected: Ei

Hence,

Test statistic = 18.121

p - Value = 0.0059

N DF Chi-Square P-value 444 6 18.12071 0.0059

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