Ask Question
17 December, 12:40

The standard deviation of a population is known to be 7.8. If the sample size I'd 85, what is the standard error of the mean

+5
Answers (1)
  1. 17 December, 13:15
    0
    The standard error of the mean is 0.85.

    Step-by-step explanation:

    The given standard deviation of a population (σ) = 7.8

    sample size (N) = 85

    We have to find standard error of the mean.

    The formula to find standard error of the mean

    = (standard deviation of the distribution) / (square root of sample size)

    = (σ) / (√N)

    = 7.8 / (√85)

    = 7.8 / 9.219544457

    = 0.8460

    = 0.85 (approximately taken to two decimal places)

    We have got the required answer.

    The standard error of the mean is 0.85.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “The standard deviation of a population is known to be 7.8. If the sample size I'd 85, what is the standard error of the mean ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers