Process Capability Assessment Control Charts for Individual Measurements Cumulative-Sum control charts Control Charts for Large Sample . . Statistical Process Control - Part II IE 330‚ Spring 2013‚ Instructor: Yu-Ching Lee March 14‚ 2013 1 / 127 Process Capability Assessment Control Charts for Individual Measurements Cumulative-Sum control charts Control Charts for Large Sample Use of the histogram Process Capability Indices Statistical Assignment of Tolerances Loss
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- Statistics is the science of collecting organizing‚ presenting‚ analyzing and interpreting data. It turns Data into information through transformation. Population ! - Everyone in group ! ! - µ is the mean ! - σ is the standard deviation Sample! - Some/Portion of group ! -x is the mean!! -S is the standard deviation Measurement Scales Types of Data Categorical/Qualitative Categorical/Qualitative Nominal! -Data has category but no order Data that can only be in categories ! ! -Example
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generally used in business: Arithmetic mean Geometric mean Harmonic Mean Median Mode Arithmetic mean: Arithmetic mean is defined as the sum of all observations divided by the total number of observations. Calculation of Arithmetic Mean-Ungrouped Data: For ungrouped data‚ arithmetic mean may be computed by applying any of the following methods: Direct method Short-cut method Direct method: The arithmetic mean‚ often simply referred to as mean‚ is the total of the values of a set of
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the slope obtaining by regressing the asset’s past returns with the corresponding returns of the average portfolio called the market portfolio. (The return of the market portfolio represents the return earned by the average investor. It is a weighted average of the returns from all the assets in the market). The larger the slope of an asset‚ the larger is the risk associated with that asset. A of 1.00 represents average risk. The return from an electronics firm’s stock and the corresponding
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characteristic or measure obtained using data values from a specific sample. The Measures of Central Tendency are: • The Mean • The Median • The Mode • The Midrange • The Mean The mean is the sum of the values‚ divided by the total number of values. Sample mean: [pic] where n is the sample size Population mean: [pic] where N is the population size • The Median The median of a data set is the value in
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Population of Arizona for the year 2010 – do the calculations from 1929-2010. (5 Points) b. Calculate the Mean Absolute Deviation for this Data Set (5 Points) c. Use a 3 period weighted moving average (previous Year 60%‚ 2 years Previous 30% and 3 years previous 10%) to forecast the Population of Arizona for the year 2010 – do the calculations from 1929-2010 (5 Points) d. Calculate the Mean Absolute Deviation for this Data Set (5 Points) 2. a. Using Sheet “Population of Arizona” using the
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1 CHAPTER I THE PROBLEM Enrollment serves as important part in the life of every student upon entering schools or universities‚ either public or private. It is considered as the initial process that must furnished by students within a particular institution before the school year starts. The student usually takes an admission test‚ followed by scheduled interview‚ then filling-up of forms and payment of fees. Enrollment involves the process of entering and verifying data of students
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returns (so that you won’t have large‚ spurious negative returns due to dividend payments or splits)‚ and 2) calculate log returns (so that you can aggregate daily returns to obtain holding period returns‚ if ever needed). In Excel‚ the function for mean and standard deviation are “= average (range)” and “stdev(range).” To calculate the correlation matrix‚ use “correlation” under “data analysis.” Please note‚ in practice‚ the estimates can be adjusted in view of economic outlooks. This is especially
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A Study on the Forecasted Sales of San Miguel Corporation for the year 2012 Redilyn Magbitang Ruth Anne Panganiban Lady Fatima Sandoval INTRODUCTION Background of the study San Miguel Corporation is the Philippines’ largest beverage‚ food and packaging company. The company now has more than 100 facilities around the Philippines and outside the country specifically Southeast Asia and China. One of the country’s premier business conglomerates‚ San Miguel’s extensive
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In this paperwork of QNT 561 Final Exam you will find the answers on the next questions: 1. A difference between calculating the sample mean and the population mean is 2. Which of the following measures of central location is affected most by extreme values? 3. Which level of measurement is required for the median? 4. In which of the following distributions is the probability of a success usually small? 5. Which of the following is not a requirement of a probability distribution
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