If one additional rep is hired to work during the 1 am to 9 am period, what is the average amount of time a customer spends in the system? Keeping three decimals of your calculation. 1.116 minutes 5.112 minutes 54.882 minutes 6.228 minutes a duration (in minutes) different from all the above Question 5 1 pts With the additional rep working during the 1am to 9am, what effect would this have on the average amount of time it takes to serve a customer? Keeping one decimals of your answer if needed. A. The service time is reduced by 0.1 minutes. B. The service time is reduced by 0.3 minutes. c. The service time is reduced by 0.8 minutes. D. The service time is reduced by a positive amount of time different from all the above. E. No effect Question 6 1 pts Suppose Boot Barn wants there to be no more than a 5% chance that a customer will be placed on hold. How many sales reps should the company employ in total? 1 2 3 4 5 6 Refer to the previous problem. Suppose that Boot Barn's phone system can only keep four calls on hold at any time, the average profit margin of each call is $55 and sales reps cost the company $12 per hour. If callers who receive a busy signal take their business elsewhere, how much money is the company losing per hour (on average) if it employed a single sales rep (i.e. without hiring the additional employee mentioned in previous problem)? Rounding decimals of your calculation to units. Hint: you need to consider the probability of balk. $96 $107 $132 $155 a value different from all the above Question 8 1pts If callers who receive a busy signal take their business elsewhere, what is the profit the company makes per hour if it employed a single sales rep (i.e. without hiring the additional employee)? Rounding decimals of your calculation to units. Rounding decimals of your calculation to units. $882 $770 $651 $550 $443 a value different from all the above Question 9 1pts By how much will the profit increase per hour if the company employs two sales reps instead of one? Rounding decimals of your calculation to units. $89 $96 $105 $118 more than $118 Boot Barn sells cowboy boot and western wear through catalogs and the web. Customers can phone in orders at any time day or night, 7 days a week. During the 1 am to 9 am shift, a single sales rep handles all calls. During this time, calls arrive at a rate of 14 per hour following a Poisson distribution. It takes the sales rep an average of four minutes to process each call. The variability in service times is approximately exponentially distributed. All calls received while the sales rep is busy are placed in a queue. Which of the following statement regarding this problem is not true? A. M/M/s model is suitable to analyze this problem. B. =14 c. =4 D. M/M/1 model can be used to analyze the problem. Question 2 1 pts On average, how long must customers wait in line before talking to the sales rep? Rounding decimals of your calculation to units. 56 minutes 60 minutes 33 minutes 72 minutes a duration (in minutes) different from all the above Question 3 1 pts On average, how many people are on hold? Keeping four decimals of your calculation. 13.0667 14.0000 0.9333 14.9333 a number different from all the above