The upper control limit and the lower control limit of the c-chart when the defective rate is 35 per day and z is 3.0. Concept Introduction: The c-chart is the type of control chart that is used to observe the count type data usually the total number of nonconformities per unit. Control charts are generally used to determine whether the process is in control or not. The upper control limit (UCL) represents the upper control, whereas the lower control limit (LCL) represents the lower limit of a process.

Question

Want to see the full answer?

Answer 1

Question

Chapter 13, Problem 20P

Summary Introduction

Interpretation:

The upper control limit and the lower control limit of the c-chart when the defective rate is 35 per day and z is 3.0.

Concept Introduction:

The c-chart is the type of control chart that is used to observe the count type data usually the total number of nonconformities per unit. Control charts are generally used to determine whether the process is in control or not. The upper control limit (UCL) represents the upper control, whereas the lower control limit (LCL) represents the lower limit of a process.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Simplex Method Three types of paints are manufactured in one machine; Interior paint, Exterior paint and Paint for metal structures. The preparation time for each type of paint is 2, 3 and 4 minutes respectively and the processing time is 3, 2 and 1 minute. The profit contributed by each product is 12, 10 and 15 dollars respectively. The machine availability is 100 minutes and 200 minutes for machine setup. 1. Determine the optimum number of types of paints to be manufactured. 2. Determine the optimal utility value.

The company LED S.A DE C.V. produces 2 devices for lamps, devices 1 and 2 that require metal parts and electrical parts. The manager wants to determine how many units of each product should be manufactured to maximize the profit for each unit, device 1 requires 2 metal parts and 4 electrical parts, device 2 requires 4 metal parts and 2 electrical parts, the company has 24 units of each material available for batch production, device 1 generates $4 profit and device 2 generates $6 profit. a) Formulate PL model. b) Solve by the graphical method and determine what is the resulting maximum profit. Translated with DeepL.com (free version)

Question 3 i. Using the Center of Gravity method, determine the optimal location (X, Y) for the new distribution center. [7 marks] [TOTAL 25 MARKS] Time (sec.) Power steering assembly firm wants to set up an assembly line which must have an output of 60 units per hour. The work elements, task times and their precedence relationships are shown in Table 2: Table 1 Work Element Immediate Predecessor(s) A 30 NONE B 26 A C 50 A D 44 B E 10 с F 20 с G 15 D.E H 30 E,G,F Required: a. Draw the precedence diagram showing the task precedence and their times b. Determine the cycle time associated with the rate of output required. [3 marks] c. What is the theoretical number of work stations required to satisfy this output rate? [3 marks] [4 marks] d. Allocate the tasks to work stations taking into consideration the precedence requirements and using the LOT rule to break ties between feasible tasks. e. Calculate the total idle time [8 marks] [3 marks] f. What is the efficiency of the line and the…