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

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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
A process is monitored for defective items by taking a sample of 200 items each day and calculating the proportion that are defective. Let p; be the proportion of defective items in the ith sample. For the last 30 samples, the sum of the proportions is E P; = 1.64. Calculate the center line and the 30 upper and lower control limits for a p chart.
Suppose that we want to determine if the average amount of timespent online by the students is lessthan 4.5 hours/day. To this end, weconduct a survey of students and askthem how long they spend online perday. We obtain the following results:4.1, 4.3, 4.3, 4.5, 4.6, 4.3, 4.1, 4.6,4.7, 4.6, 4.7, 4.1, 4.3, 4.3, 4.5, 4.6,4.3, 4.1, 4.6, 4.7, 4.6, 4.7, 4.5, 4.6,4.3, 4.1 Assume that the number ofhours spent online has a normal distribution. Test your hypot
a.In an aquaculture study the following variables were measured on each fish: sex. Initial weight (g), bodytemperature (C), weight gain (g). For each variable indicate the scale of measurement. (b) A weed killer is to be applied at a rate of two ounces per 1000gallons of water (2oz/1000gallons). What is the application rate in ml/1000litrtrs if there are 28.375 ml/oz and 4.5liters/gallon? (c) The term test scores of 15 students enrolled in a Business statistics class were recorded inascending order as follows 4, 7, 7, 9, 10, 11, 13, 15, 15, 15, 17, 17, 19, 19, 20. After calculatingthe mean, median and the mode an error is discovered: one of the 15’s is really a 17. Of the threemeasures of central tendency which will change? (d) A student discovers that his grade on a recent test was the 72 nd percentile. If 90 students wrotethe test, then approximately how many students received a higher grade than he did?
The Centre of Student Experience (CSE) needs to know freshmen' average spending at UNIMY on campus supplies, food, stationery, and books. The CSE randomly study 100 freshmen studying on campus and their spending ranged between RM300-RM500 per month. Based on the above study, determine the following terms: vi. Measurement scale vii. Statistic viii. Parameter ix. Is research based on descriptive statistics or inferential statistics? Justify your answer. x. Is data collected from an observational study or an experimental study? Justify your answer.
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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?
Q.No.3: Discuss different scales for the measurement of data with two examples
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)

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