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:
$$\begin{array} { | l | c | c | c | c | c | c | c | }
\hline \text { Day } & \text { Monday } & \text { Tuesday } & \text { Wednesday } & \text { Thursday } & \text { Friday } & \text { Saturday } & \text { Sunday } \
\hline \text { Prescriptions } & 42 & 31 & 33 & 29 & 45 & 44 & 21 \
\hline
\end{array}$$ Which of the following is the appropriate null hypothesis for this test?

Question

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:
$$\begin{array} { | l | c | c | c | c | c | c | c | } 
\hline \text { Day } & \text { Monday } & \text { Tuesday } & \text { Wednesday } & \text { Thursday } & \text { Friday } & \text { Saturday } & \text { Sunday } \
\hline \text { Prescriptions } & 42 & 31 & 33 & 29 & 45 & 44 & 21 \
\hline
\end{array}$$ Which of the following is the appropriate null hypothesis for this test?

Quizplus · Accepted Answer

The null hypothesis for testing uniform distribution of prescriptions over the days of the week posits that the proportion of prescriptions filled is the same for each day, which is 1/7 for each day of the week.

The Manager of a Pharmacy Wants to Know If Prescriptions