A certain population has a mean of u=100 and a standard deviation of o=30. If a sample of n=16 produced a sample mean of x bar=90 and a sample standard deviation of s=24, then what is the standard error?
I know 3 different formulas for this, but none contains all the data, so I don't know what to do.
Please show all steps! And please show all formulas as best as you can!
A certain population has a mean of u=100 and a standard deviation of o=30. If a sample of n=16 produced a sample mean... find standard error?
2016-04-18 4:34 am
回答 (1)
2016-04-18 10:50 am
✔ 最佳答案
standard error of the mean= σ / √n
= 30 / √16
= 30 / 4
= 7.5 ..... Ans
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