shift return delete C Check Answer + 1 C . A O V O X CO Z Clear All MacBook Pro I The trade magazine QSR routinely checks the drive-through service times of fast-food restaurants. A 99% confidence interval that results from examining 507 customers in Taco Bell's drive-through has a lower bound of 159.0 seconds and an 28 LO LL 88 - O LU # 0 X N Enter your answer in the answer box and then click Check Answer . The mean service time from the 507 customers is seconds upper bound of 165.2 seconds. Complete parts (a) through (c). (a) What is the mean service time from the 507 customers? (Type an integer or a decimal. Do not round.) esc 2 remaining caps lock parts tab