Question 15 1 pts Provide an appropriate response. The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 6.0 minutes and a standard deviation of 1 minute. Find the cut-off time which 75.8% of the college students exceed when trying to find a parking spot in the library parking lot. O 6.7 min 6.8 min 6.5 min O 6.3 min