how do you do longhand

To compare the dry braking distances from 3!} to 0 miles per hour for two makes of automobiles, a safety.r engineer conducts braking tests for 35 models of Make A and 35 models of Make B. The mean braking distance for Make A is 4-2 feet. Assume the population standard deviation is 4.5 feet. The mean braking distance for Make B is 45 feet. Assume the population standard deviation is 4.4 feet. At a: [1.10, can the engineer support the claim that the mean braking distances are different for the two makes of automobiles? Assume the samples are random and independent, and the populations are normally distributed. Complete parts {a} through {e}. Click here to View p_age 'l of the standard normal distribution table. Click here to View p_age 2 of the standard normal distribution table. {a} Identify the claim and state HE, and H3. What is the claim? 0 A. "he mean braking distance is greater for Make A automobiles than Make B automobiles. O B. \"he mean braking distance is different for the two makes of automobiles. O (3. "he mean braking distance is less for Make A automobiles than Make B automobiles. O D. \"he mean braking distance is the same for the two makes ofautomobiles