2. [-/7 Points] 0/2 Submissions Used | PRACTICE ANOTHER As a result of several customer complaints, a furniture company would like to know if its delivery times have increased since the previous year. A random sample of 77 orders from the previous year were examined and their delivery times recorded. Another random sample of 77 orders from the current year were similarly examined. (a) Which type of hypothesis test should be conducted? ... v ... v (b) Which hypotheses should be tested? OHozuD=0vs.Ha:yD>0 O HO: \"current _ \"previous = 0 VS- Ha: l'current _ \"previous > 0 OHO:MD=0vs.Ha:uD