نتایج جستجو برای: mean and standard deviation and inferential statistics k
تعداد نتایج: 16941814 فیلتر نتایج به سال:
drought is transient phenomenon , slow , repetitive and integral part of the climate of each region. drought begins with a substantial reduction in precipitation over the long-term average rainfall and over time, reduced soil moisture and surface and ground water resources will continue to decrease. this phenomenon is the most important in bakhtegan basin because of its importance in strategic ...
abstract in this thesis at first we comput the determinant of hankel matrix with enteries a_k (x)=?_(m=0)^k??((2k+2-m)¦(k-m)) x^m ? by using a new operator, ? and by writing and solving differential equation of order two at points x=2 and x=-2 . also we show that this determinant under k-binomial transformation is invariant.
خصوصیات بتن تولید شده توسط تغییر در خصوصیات مصالح تشکیل دهنده بتن دستخوش تغییر می گردد،تغییراتی مثل: 1):کیفیت سیمان 2):نسبت آب به سیمان واقعی: که با به حساب نیاوردن وجود آب اضافی در سنگدانه ها یا فقدان آن این نسبت را دستخوش نوسان می نماید. 3):خصوصیات سنگدانه که به ابعاد زیر مربوط میگردند: الف):کیفیت سنگدانه ب):شکل سنگدانه ج):دانه بندی سنگدانه مقاومت مورد محاسبه در طرح اختلاط ، مقاومت متو...
Descriptive statistics is the process of summarizing gathered raw data from a research and creating useful statistics, which help the better understanding of data. According to the types of variables, which consist of qualitative and quantitative variables, some descriptive statistics have been introduced. Frequency percentage is used in qualitative data, and mean, median, mode, standard deviat...
Purpose: This study was designed to investigate the association between knowledge creation and organizational innovation among the staff of Tehran University of Medical Sciences (TUMS). Materials and Methods: In this descriptive correlational study, 132 individuals from TUMS employees were randomly selected based on Cochran’s formula. The questionnaires of knowledge creation managemen...
Introduction: Nursing and midwifery students are exposed to high stress as they face multiple stressors in their educational and clinical experiences. This can threaten their mental health, which in turn, can affect their function. Considering the impact of mental health on individual performance, this study examined mental health and its relationship with academic achievement in students of Ta...
computer-assisted language instruction (cali) is one of the recent advances in teaching languages. cali is considered as an effective teaching methodology. this research is a comparative study of the effect of two teaching methods; cali and traditional, on persian reading comprehension of female students in pre-university level of international school in tehran in 1390. statistical community in...
The present research was performed to Design the Marital Adjustment Model with due attention to Islamic life Style and Perfectionism in High School Teachers in Birjand. The method of research was non experimental and structural equation Modeling (SEM). A sample of 300 teachers from Birjand city was selected through random cluster sampling (150 male and 150 female). The tools included: Locke-Wal...
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