4b. In conducting a time study of a machinist turning a stepped shaft on a lathemachine, the following average times as indicated in Table 7 were noted for theturning operation. If the machinist's performance has been rated at 120 percent, andthe company policy for allowance (personal fatigue, etc.) stipulates 18 percent;i) Determine the normal timeii) Determine the standard timeafter discarding watch readings falling 10 % above and 5 % below the average4c. The following measurements were recorded off/from a plastic cutting process,where lengths of plastic were automatically cut to specification:7.1; 7.3; 7.4; 7.6; 7.5; 7.8; 8.1; 8.3; 8.5; 8.3; 8.1; 8.0; 7.6; 7.9; 7.8; 8.0; 8.0; 8.0;7.9; 7.8; 7.9; 8.2; 8.0; 8.1; 8.3Determine:i) meanii) standard deviationTable 7: Observation on a turning operationRun1346.789.103026253231323334Operationtime2527(min)Run11121314151617181920Operationtime22222323242425252626(min)Run21222324252627282930Operation25262728293031313334time(min)Run31323334353637383940Operationtime25262728293031323334(min)

Answered: Image /qna-images/answer/439ae491-40cd-4ab0-b651-a9940224373a.jpg

Answered: 4b. In conducting a time study of a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

[3] Situation: In a known hardware store in Pampanga, the manager is interested to know how much on average, their customers spend each visit in the store. Using their records, a 1000 visits were drawn and the customer’s average spending were calculated. From the computation, the mean amount spent of the customers per visit in the store was computed at P3,034.35. This is an example of a: a. Population b. Sample c. Parameter d. Statistic e. Variable
2. a. Indicate the scale of measurement of the following variables: iv. Marital status v. Weight (in kilograms) vi. Bond ratings vii. Age (in years) v. Ranks in the military
Illustration 23.8. After the chart was set up the process was observed to be well under control for a long period with an average of 4% defective and it was decided to reduce inspection for control. A sample of size 25 was decided upon. Obtain the control limits for the revised chart. At a later date, the examination of the conttol chart gave the following number of defectives per sample over the last 20 samples : 0, 0, 2, 3, 0, 2, 1, 1, 0, 0, 1, 2, 1, 1, 1, 2, 4, 4, 3, 3. The quality control incharge decided , on the basis of the data that the process has to be checked. Is the decision justified?
There is a relationship between political affiliation (on a scale of 1 to 10, where 1 = very liberal and 10 = very conservative) and U.S. geographic regions, such that people living in the Northeast are more likely to consider themselves liberal than people living in the South. what is my unit of analysis?
1. The data in Table 7–6 were collected in a clinical trial to evaluate a new compound designed to improve wound healing in trauma patients. The new compound was com- pared against a placebo. After treatment for 5 days with the new compound or placebo, the extent of wound healing was measured. Is there a difference in the extent of wound healing between the treatments? (Hint: Are treatment and the percent wound healing independent?) Run the appropriate test at a 5% level of significance. Use the data in Problem 1. Pool the data across the treatments into one sample of size n = 250. Use the pooled data to test whether the distribution of the percent wound healing is approximately normal. Specifically, use the following distribution 30%, 40%, 20%, and 10% and a = 0.05 to run the appropriate test. Percent Wound Healing Treatment 0-25% 26-50% 51-75% 76-100% New compound (n=125) 15 37 32 41 Placebo (n=125) 36 45 34 10
The following table contains the average number of employees per 100 hectares (x) and the production rate per 100 hectares (y) at 15 different farms in a region. y 7.5 404 16.6 702 10.9 507 6.5 385 10 464 12.1 495 8.6 400 10.2 503 7.5 310 268 6.2 280 12 596 17.1 711 14.1 551 6.1 242
A. Identify the Level of Measurement for each of the following variables 1. Price of raw materials 2. Aperson's occupation 3. Advertising costs 4. Length of time before a device fails 5. "Star" rating of hotels. 6. Product satisfaction as "Very Unsatisfied, Fairly unsatisfied, until Very satisfied" 7. Types of investments (Stocks, Bonds, others) 8. Standardized exam score (eg. Board exam score) 9. Time (in minutes) it takes students to complete a statistics test 10. Time to execute a command in a computer program B. Identify if the quantity reported is a Parameter or a Statistic 1. Inastudy of Filipino Airlines flights from Japan tothe Philippines, 68 flights are randomly selected and the average (mean) arrival time is 9.2 minutes late. 2. A sample of 120 employees of a company is selected, and the average age is found to be 37 years. 3. Ina study of 320 babies born at four different hospitals in Baguio, it was found that the average weight at birth was 3.175 kgs. 4. Afterinterviewing…
IV. APPLICATION AND ANALYSIS ON QUEUING THEORY. Direction: Given the following assumptions, derive the answer/s for each question. In answering the questions, copy the questions into the Output Area and write your answers after each question. Assumptions: Mean Arrival Rate (2) = 3 customers/hour Number of Ser vers (C ) = 1 Mean Service Rate (U) = 4 customer s/hour 1. Calculate and determine the Occupation Rate. (p) 2. What is the average number in system average (L)? 3. Determine the average system in system (W). 4. What is the average time in queue (Wq)? 5. Determine the length of queue (Lq). Capacity Demand p = Available Capacity u =- L=p/(1- p) Lq= p2/(1- p) = L-p W=LA=1/(u- 2) We-Lψλ- λ( μ(μ- λ)

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS