b)  What proportion of customers will take between 35 and 60 minutes?

1:13:55Question 16Not yet answeredMarked out of 9.00Flag questionTipsQUESTION 1The manager of a computer shop is recording the time taken for customers to decide of which computer and accessories they buy from the time they enter the store. From the previous data, it is known that the average ‘decision’ time was 45 minutes. The manager assumes a normally distributed population with a standard deviation of 10 minutesa)  What is the probability that a customer will take more than 60 minutes?b)  What proportion of customers will take between 35 and 60 minutes?c)  From a sample of 36 customers, what is the probability that the sample mean will be less than 40 minutes?

The manager of a computer shop is recording the time taken for customers to decide of which computer and accessories they buy from the time they enter the store. From the previous data, it is known that the average ‘decision’ time was 45 minutes. The manager assumes a normally distributed population with a standard deviation of 10 minutesa)  What is the probability that a customer will take more than 60 minutes?

The time to resolve a problem at a technical helpdesk in a mobile phone company is normally distributed with a mean of 17 minutes and a standard deviation of 3 minutes. a) For a randomly selected customer, find the probability that his problem can be solved in less than 12 min. b) For a randomly selected customer, find the probability that his problem can be solved between 18 mins and 20 mins. c) 40% of the customers are dissatisfied with the waiting time. What is the minimum waiting time for a dissatisfied customer?

Customers arrive at a drive-up window of a fast-food restaurant at a rate of 3 per minute during lunch hour. a.What is the probability that the next customer will arrive within 2 minutes? b.What is the probability that the next customer will arrive within 4 minutes? c.During the dinner time period,the arrival rate is 1 per minute.What are your answers to a and b for this period? Round to four decimal places as​ needed.

Five new customers A, B, C , D and E enters into the bank to complete some transactions. The system has allotted fixed time to all the 5 customers.Customer A was allotted 15 minutes.Customer B was allotted 7 minutes.Customer C was allotted 8 minutes.Customer D was allotted 12 minutes.Customer E was allotted 8 minutes.Question1 :Provide the waiting time of customer D, if the work execution is done based on the condition "Customer with minimum allotment time will be served first.