A Local Pediatrician Office Is Interested in the 'No-Show' Appointment $\chi$

A local pediatrician office is interested in the 'no-show' appointment count for each of the 4 pediatricians.'No-show' appointments represent lost revenues because the physician will be
Idle when patients do not show for their scheduled appointments.Using the data in the table
Below and an alpha of 0.10, what is the critical value of $\chi$ ²?
$$\begin{array} { r r r r r } & \text { Physician A } & \text { Physician B } & \text { Physician C } & \text { Physician D } \\\text { week 1 } & 8 & 4 & 6 & 7 \\\text { week 2 } & 7 & 3 & 4 & 6 \\\text { week 3 } & 8 & 2 & 5 & 4 \\\text { week 4 } & 8 & 6 & 7 & 9 \\\text { week 5 } & 4 & 2 & 5 & 10\end{array}$$

A) 4.61
B) 6.25
C) 7.78
D) 13.28
E) 15.09