please solve

AUTO BRAKING The braking system on a certain car will stop it in a mean distance of 60 feet when traveling 35 miles per hour. A new system, thought to be better, has been developed. The new system is installed on a random sample 36 cars and the sample mean stopping distance was 58 feet, with a o (population standard deviation) of 7 feet. Test at the 0.01 (1%) significance level... Can we conclude that the new system will stop the car in less distance