Examlex
A sample of n = 4 scores is selected from a population with μ = 30 and σ = 8.The probability of obtaining a sample mean greater than 34 is equal to the probability of obtaining a z-score greater than z = 2.00 from a normal distribution.
Arithmetic Average Return
The simple mean of a series of returns over a specific period, often used to gauge the performance of an investment.
Statistically Significant
Refers to a result that is not likely to occur randomly or by chance, but rather is likely to be attributable to a specific cause.
Portfolio Performance
The analysis and evaluation of the returns generated by a collection of investments held by an individual or an institution.
Observation Period
A specific timeframe during which data is collected or observations are made.
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