The Manager of a Pharmacy Wants to Know If Prescriptions

Short Answer

The manager of a pharmacy wants to know if prescriptions are filled uniformly over the 7 days of the week. The manager takes a simple random sample of 245 prescription receipts and finds that they are distributed as follows.:
$$\begin{array} { | l | c | c | c | c | c | c | c | } \hline \text { Day } & \text { Monday } & \text { Tuesday } & \text { Wednesday } & \text { Thursday } & \text { Friday } & \text { Saturday } & \text { Sunday } \\\hline \text { Prescriptions } & 42 & 31 & 33 & 29 & 45 & 44 & 21 \\\hline\end{array}$$ To test this null hypothesis of a uniform distribution of prescriptions over the 7 days of the week, the degrees of freedom for the chi-square test is _______________.