Sampling Distributions
To Top
To Top
To Top
To TopWhat is the correct formula for sample standard deviation?The sample standard deviation formula is: s=√1n−1∑ni=1(xi−¯x)2 s = 1 n − 1 ∑ i = 1 n ( x i − x ¯ ) 2 , where ¯x x ¯ is the sample mean and xi x i gives the data observations and n denotes the sample size.
What is the standard deviation of the sampling distribution of the sample means?The standard deviation of the sampling distribution of the mean is called the standard error of the mean. It is designated by the symbol: σM . Note that the spread of the sampling distribution of the mean decreases as the sample size increases.
What is the formula for sampling distribution?If a random sample of n observations is taken from a binomial population with parameter p, the sampling distribution (i.e. all possible samples taken from the population) will have a standard deviation of: Standard deviation of binomial distribution = σp = √[pq/n] where q=1-p.
Which of the following formula is used to calculate the standard deviation of the sampling distribution of the sample mean when the population standard deviation is given?2) "the formula for the standard deviation of the sampling distribution of the sample mean, σ/√n, holds approximately if the population is finite and much larger than (say, at least 20 times) the size of the sample".
|