1. ## Test

Want to test if the number of accidents on a highway is equally distributed in the days of the week.
Therefore, we collected the following data:

Day of the week | 1 | 2 | 3 | 4 | 5 | 6 | 7
Number of Accident | 33 | 26 | 21 | 22 | 17 | 20 | 36

Use $\alpha = 5$%

2. I would use a $\chi^2$ test with calculated value $\displaystyle \chi^2 = \frac{(\text{Observed}-\text{Expected})^2}{\text{Expected}}$

Test will be

$H_0: \text{# Mon Accidents = # Tue Accidents = ... = # Sun Accidents}$

$H_a: \text{At least one of days is different}$

3. Originally Posted by pickslides
I would use a $\chi^2$ test with calculated value $\displaystyle \chi^2 = \frac{(\text{Observed}-\text{Expected})^2}{\text{Expected}}$

Test will be

$H_0: \text{# Mon Accidents = # Tue Accidents = ... = # Sun Accidents}$

$H_a: \text{At least one of days is different}$
OK. Thanks