A courier service advertises that its average delivery time is less than 5 hours for local deliveries. A comsumer advocate thinks otherwise. A random sample of times for 12 deliveries to an address across town was recorded. These data are shown below. Test to determine whether there is enough evidence to support the consumer group's beliefs, at the 6% significance level.

$$\begin{array}{cccccc} 4 & 8 & 7.25 & 7.75 & 8 & 4.5 \\ 4.25 & 5 & 4.5 & 5 & 6.75 & 8.25 \end{array}$$

A. The value of the standardized test statistic:

Note: For the next part, your answer should use interval notation. An answer of the form $(-\infty, a)$ is expressed (-infty, a), an answer of the form $(b, \infty)$ is expressed (b, infty), and an answer of the form $(-\infty, a) \cup (b, \infty)$ is expressed (-infty, a)U(b, infty).

B. The rejection region for the standardized test statistic:

C. The p-value is

D. Your decision for the hypothesis test:

A. Reject $H_0$.
B. Reject $H_1$.
C. Do Not Reject $H_0$.
D. Do Not Reject $H_1$.