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A population that consists of 500 observations has a mean of 40 and a standard deviation of 15 A sample of size 100 is taken at random from this population The standard error of the sample mean equa?
Wiki User
∙ 14y ago
The formula for calculating the standard error (or some call it the standard deviation) is almost the same as for the population; except the denominator in the equation is n-1, not N (n = number in your sample, N = number in population). See the formulas in the related link.
Wiki User
∙ 14y ago
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What does the sample standard deviation best estimate?
The standard deviation of the population. the standard deviation of the population.
Can a standard deviation of a sample be equal to a standard deviation of a population?
Yes
Is population standard deviation the same thing as absolute standard deviation?
No.
What is a population standard deviation?
The true / real standard deviation ("the mean deviation from the mean so to say") which is present in the population (everyone / everything you want to describe when you draw conclusions)
What is mean and standard deviation?
They are statistical measures. For a set of observations of some random variable the mean is a measure of central tendency: a kind of measure which tells you around what value the observations are. The standard deviation is a measure of the spread around the mean.
What does the sample standard deviation best estimate?
The standard deviation of the population. the standard deviation of the population.
What does standard deviation tell about distribution and varity?
It is a measure of the spread of the distribution. The greater the standard deviation the more variety there is in the observations.
Is population standard deviation the same thing as absolute standard deviation?
No.
Can a standard deviation of a sample be equal to a standard deviation of a population?
Yes
What is the standard deviation of 157 160 161 172 165 149?
The standard deviation if the data is a sample from a population is 7.7115; if it is the population the standard deviation is 7.0396.
There is a set of 100 observations with a mean of 50 and a standard deviation of 0 What is the value of the smallest observation in the set?
If there is zero deviation all the observations are 50.
What is the statistic that is used to estimate a population standard deviation?
the sample standard deviation
What is the standard deviation?
The standard deviation of a set of data is a measure of the spread of the observations. It is the square root of the mean squared deviations from the mean of the data.
For a set of 100 observations with a mean of 46 and a standard deviation of 0 What is the value of the smallest observation in the set?
There is no actual "smallest" observation - a standard deviation of zero means that all 100 of the observations had to be 46.
A simple random sample of 64 observations was taken from a large population The sample mean and the standard deviation were determined to be 320 and 120 respectively The standard error of the mean you?
15
The standard deviation of the distribution of means is also known as the population standard deviation?
Yes.
What do you do if you are running a comparison to historical data and your background standard deviation is zero?
A standard deviation of 0 implies all of the observations are equal. That is, there is no variation in the data.
