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Will a large sample size and a small sample variance produce the largest value for the estimated standard error?

no


What is the relationship between standard deviation and variance?

Standard deviation is the square root of the variance.


If outliers are added to a dataset how would the variance and standard deviation change?

They would both increase.


Which of the following samples will produce the largest value for the estimated standard error?

A small sample size and a large sample variance.


What is the sample variance and the estimated standard error for a sample of n 9 and scores with SS 72?

The sample variance (s²) is calculated using the formula ( s² = \frac{SS}{n - 1} ), where SS is the sum of squares and n is the sample size. For a sample size of n = 9 and SS = 72, the sample variance is ( s² = \frac{72}{9 - 1} = \frac{72}{8} = 9 ). The estimated standard error (SE) is the square root of the sample variance divided by the sample size, calculated as ( SE = \sqrt{\frac{s²}{n}} = \sqrt{\frac{9}{9}} = 1 ). Thus, the sample variance is 9 and the estimated standard error is 1.


How does sample variance influence the estimated standard error and measures of effect size such as are r2 and Cohen's D?

Sample variance directly influences the estimated standard error, as the standard error is calculated using the sample variance divided by the square root of the sample size. A higher sample variance results in a larger standard error, indicating greater uncertainty in the estimate of the population parameter. For effect size measures like ( r^2 ) and Cohen's D, increased sample variance can affect their interpretation; larger variance may lead to smaller effect sizes, suggesting that the observed differences are less pronounced relative to the variability in the data. Thus, understanding sample variance is crucial for accurate estimation and interpretation of effect sizes.


How is standard costing variance interrelated?

http://www.futureaccountant.com/standard-costing-variance-analysis/ http://www.futureaccountant.com/standard-costing-variance-analysis/


Standard Costing Vs Variance Analysis?

standard costing and variance analysis


Can standard deviation be larger then its variance?

No. The standard deviation is the square root of the variance.


How do you calculate variance given standard deviation?

Square the standard deviation and you will have the variance.


Can the Variance ever be smaller than standard deviation?

Yes. If the variance is less than 1, the standard deviation will be greater that the variance. For example, if the variance is 0.5, the standard deviation is sqrt(0.5) or 0.707.


How do you calculate standard deviation if I know variance?

Standard deviation = square root of variance.

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