Difference of Two Means (Test) Practice Test

A school district wants to know whether a new reading program changes mean reading-comprehension scores. A random sample of 40 students used the new program (Group N) and a separate random sample of 38 students used the old program (Group O). A two-sample $t$ test for $\mu_N-\mu_O$ was conducted with hypotheses $H_0: \mu_N-\mu_O=0$ and $H_a: \mu_N-\mu_O>0$. The test produced a p-value of 0.018. Using $\alpha=0.05$, what conclusion is appropriate?

A city compares mean response time (minutes) for two ambulance dispatch systems. Independent random samples of calls are taken from System 1 (S1) and System 2 (S2). A two-sample $t$ test for $\mu_{S1}-\mu_{S2}$ is performed with $H_0: \mu_{S1}-\mu_{S2}=0$ and $H_a: \mu_{S1}-\mu_{S2}>0$. The p-value is 0.11. Using $\alpha=0.10$, what conclusion is appropriate?