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Anybody here know how to calculate a standard error statistics problem?
How would I calculate a standard error statistics problem with data that is a sample of 4 from a population of 10. The data are 43, 47, 48, and 42.
Thanks.
2 Answers
- cidyahLv 76 years agoFavorite Answer
43,47,48,42
∑x = 43+47+48+42 = 180
∑x^2 = 43^2+47^2+48^2+42^2 = 8126
Variance = (∑x^2 - ( ∑ x)^2 / n ) / (n-1)
= (8126 - (180)^2 / 4) / 3
= 8.6667
Standard deviation = sqrt( 8.6667) = 2.9439
Standard error of mean = standard deviation / sqrt(4) = 2.9439 / 2 = 1.472
