Hi. May I please get a step by step answer/explanation using the 5 step process 1 identify null and alt 2 meet the requirements 3 test statistic 4 pvalue using technology ("chi square cdf") 5 and conclusion. Thank you ! 16. "waiting in line". One aspect of queuing theory is to consider waiting time in lines. A fast food chain is trying to determine whether it should switch from having four cash registers with four separate lines, to four cash registers with a single line. It has been determined that the mean wait time in both lines is equal. However, the chain is uncertain about which line has less variability and wait time. From experience, the chain knows that the wait times in the four separate lines are normally distributed with 0=1.2 Minutes. In a study, the chain reconfigured 5 restaurants to have a single line and measured the wait times for 50 randomly selected customers. Those sample standard deviation was determined to be s = 0.84 minute. is the variability in wait time less for a single line than for multiple lines at the o= 0.05 level of significance