A pharmaceutical company wants to test if a new drug reduces…

A pharmaceutical company wants to test if a new drug reduces the average recovery time for patients with a certain illness. The previous average recovery time was 14 days. After conducting a clinical trial, the company collects data for six months. Ho: mu = 14 vs. Ha: mu < 14 The p-value for this trial is 0.84.  If the true average recovery time has decreased, what type of error is this?