The generalized variance of a stationary autoregressive process
نویسندگان
چکیده
منابع مشابه
the impact of portfolio assessment on iranian efl students essay writing: a process-oriented approach
this study was conducted to investigate the impact of portfolio assessment as a process-oriented assessment mechanism on iranian efl students’ english writing and its subskills of focus, elaboration, organization, conventions, and vocabulary. out of ninety juniors majoring in english literature and translation at the university of isfahan, sixty one of them who were at the same level of writing...
15 صفحه اولInferences on the Generalized Variance under Normality
Generalized variance is applied for determination of dispersion in a multivariate population and is a successful measure for concentration of multivariate data. In this article, we consider constructing confidence interval and testing the hypotheses about generalized variance in a multivariate normal distribution and give a computational approach. Simulation studies are performed to compare thi...
متن کاملa study on the design of bio-ethanol process from date wastes of sistan and baluchistan province
اتانول کاربردهای متنوعی در صنایع لاستیک سازی، رنگسازی، حلالها ومکمل سوخت خودرو دارد. اتانول برخلاف نفت از جمله مواد تجدیدپذیر محسوب می شود که مشکلات زیست محیطی و آلودگی نیز ایجاد نمی کند. استفاده از اتانول به عنوان مکمل سوختخودروها از جمله مهمترین مصارف صنعتی این ماده بشمار می رود. با توجه به این موضوع تحقیق و توسعه در زمینه تولید اتانول با درجه خلوص بالا در سطح جهان، و نه تنها در کشور های پیشر...
Estimation of Process Variance in Using Spc Charts for a Stationary Process
Recently, statistical process control (SPC) methodologies have been developed to accommodate autocorrelated data. To construct control charts for stationary process data, the process variance needs to be estimated. For an independently identically distributed sequence of a random variable, the variance is usually estimated by the sample variance. For a weakly stationary process, different estim...
متن کاملThe Variance of the Number of Zeros of a Stationary Normal Process
Let x(t) be a separable stationary normal stochastic process with zero mean, covariance function r(r) (with r(0) = 1, for convenience), and spectrum ^(X) having an absolutely continuous component. Let N denote the number of times x(t) crosses the zero level in Q^t^T and write X2 for the second spectral moment JQ\ dF(X) = —r"(0). Then it is well known that the mean of the random variable N is gi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Multivariate Analysis
سال: 1977
ISSN: 0047-259X
DOI: 10.1016/0047-259x(77)90069-0