# statistics

posted by .

If a population has a standard deviation ó of 25 units, what is the standard error of the mean if samples of size 100 are selected?

• statistics -

SEm = SD/√n

• statistics -

2.5

## Similar Questions

1. ### statistics

what are the mean and standard deviation of a sampling distribution consisting of samples of size 16?
2. ### Statistics

hi i need help calculating the standard error using the central limit theorem. *a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11, there are 5x5=25 samples of the two scores (n=2)* i already calculated the standard …
3. ### Statistics

If the standard deviation of a population is 56 and we want the standard error (the standard deviation of the sample mean) to be 14, then we need to take how many samples?
4. ### statistics

If a population has a standard deviation of 5 units what is the standard error of the mean if samples of size 25 units are selected?
5. ### statistics

If a population has a standard deviation of 5 units what is the standard error of the mean if samples of size 25 units are selected?
6. ### statistics

How do we compute sample size fluctuations?
7. ### statistics

If a population has a standard deviation ó of 25 units, what is the standard error of the mean if samples of size 100 are selected?
8. ### math

Describe the distribution of sample means (shape, expected value, and standard error) for samples of n  36 selected from a population with a mean of μ  100 and a standard deviation of   12.
9. ### Statistics

In an essay of 250-500 words, thoroughly address the following items and respond to the related questions: 1.Define the term standard deviation. Why is it important to know the standard deviation for a given sample?