Problem 1: The normal scrap loss for four successive operations is 5%, 3%, 15% and 10% respectively.

Problem 1: The normal scrap loss for four successive operations is 5%, 3%, 15% and 10% respectively. How many units should be started through in order to finish with 1,200 pieces? Find:a) The total machine time needed if the operation times are 3, 6, 4, and 5 minutes, respectively.b) The total cost if the cost per unit for each successive operation is $2, $5, $3, and $1, respectively.Problem 2: Consider the following data:The sales department is planning for July and wants to estimate the demand. Using the exponential smoothing forecast model, compute the demand forecast for July.Problem 3: The appropriate activity managers have provided time estimates for completion of activities as shown below:a). Draw a PERT diagram for the above activitiesb). Find the critical pathc). Find the completion time of this projectd).Find the probability the project will be completed in 20 days or lessProblem 4: A work sample taken for a job over a 160-hour work month produced the following results:Set the standard time for this job.Problem 5: Dr. John R. Brown is considering a publishing company under the name JRB Publishers. JRB’s estimated costs areIn addition to the above costs, Dr. Brown wants to pay himself $40,000 for his time.a). Find the number of books JRB must sell to break even.b). If the estimated demand for the book is 1500 copies, what is the expected profit (loss) of JRB?