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According to the PMBOK (7th edition) by the Project Management Institute (PMI), Estimate at completion (EAC) is the "expected total cost of completing all work expressed as the sum of the actual cost to date and the estimate to complete." [19] EAC is the manager's projection of total cost of the project at completion.
This algorithm can easily be adapted to compute the variance of a finite population: simply divide by n instead of n − 1 on the last line.. Because SumSq and (Sum×Sum)/n can be very similar numbers, cancellation can lead to the precision of the result to be much less than the inherent precision of the floating-point arithmetic used to perform the computation.
The previous section dealt with estimating the population mean as a ratio of an estimated population total (^) with a known population size (), and the variance was estimated in that context. Another common case is that the population size itself ( N {\displaystyle N} ) is unknown and is estimated using the sample (i.e.: N ^ {\displaystyle ...
A contrast is defined as the sum of each group mean multiplied by a coefficient for each group (i.e., a signed number, c j). [10] In equation form, = ¯ + ¯ + + ¯ ¯, where L is the weighted sum of group means, the c j coefficients represent the assigned weights of the means (these must sum to 0 for orthogonal contrasts), and ¯ j represents the group means. [8]
In statistics, an estimator is a rule for calculating an estimate of a given quantity based on observed data: thus the rule (the estimator), the quantity of interest (the estimand) and its result (the estimate) are distinguished. [1] For example, the sample mean is a commonly used estimator of the population mean. There are point and interval ...
Beyoncé is now the most RIAA certified female artist of all time with 103 certified titles across her discography, the Recording Industry Association of America (RIAA) announced Tuesday.
Myles Turner made a 3-pointer from the top of the arc with 16 seconds left and had 23 points and 10 rebounds, Pascal Siakam added 20 points and the Indiana Pacers beat the Golden State Warriors ...
From January 2008 to December 2008, if you bought shares in companies when Eric Shinseki joined the board, and sold them when he left, you would have a -46.6 percent return on your investment, compared to a -38.5 percent return from the S&P 500.
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