SOLUTION: The standard deviation of a population is 1.9. What is the margin of error? The standard deviation for a set of data is 9.5. The mean is 205. What is the margin of error?

Question 1121731: The standard deviation of a population is 1.9.
What is the margin of error?
The standard deviation for a set of data is 9.5. The mean is 205.
What is the margin of error?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
The margin of error needs to be defined, but if one uses 1.96 sd (95% by empiric rule for normal distributions), it is 3.72. For 2 s.d, it is 3.61
The margin of error would be 19 for 2 s.d. or 18.6 for 1.96 s.d The margin of error is +/-19, for example, the interval within the margin of error would be (186, 224).
RELATED QUESTIONS
The standard error of a sample is 9, and the sample size is 49. What is the population... (answered by ewatrrr)

In a random sample of 23 people, the mean commute time to work was 34.4 minutes and the... (answered by Boreal)

the standard deviation of a set of data with variance 9... (answered by stanbon)

the standard deviation of a set of data with variance 9... (answered by drk)

(1) What is the margin of error for a sample statistic for a population with a standard... (answered by Boreal)

A simple random sample of 40 items resulted in a sample mean of 25. The population... (answered by stanbon)

You measure 22 backpacks' weights, and find they have a mean weight of 47 ounces. Assume... (answered by ElectricPavlov)

Determine the necessary sample size for a confidence interval around a sample mean: Set... (answered by Boreal)

1) A population has a mean of μ = 50 and a standard deviation of σ= 12. For samples of (answered by Theo)